How can a perfect fourth interval be considered either consonant or dissonant? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Perfect 4th is dissonant?Consonance & Dissonance Relative To MelodiesWhat is the difference between grouping overlaps and elisions?What is the history of the Augmented Second in World MusicWhat makes an interval “perfect”? Is this scale-dependent?What did John Cage mean by 'harmony' in his explanation to Arnold Schönberg?The theory behind western pentatonic scalesWhat determines if counterpoint is good or bad?“The intervals considered dissonant have changed since the 'Middle Ages'”; How so?Why is a major third considered more consonant than a perfect fourth?Perfect fourth is dissonant when there's no note below it?

latest version of QGIS fails to edit attribute table of GeoJSON file

Order between one to one functions and their inverses

Found this skink in my tomato plant bucket. Is he trapped? Or could he leave if he wanted?

How could a hydrazine and N2O4 cloud (or it's reactants) show up in weather radar?

What are some likely causes to domain member PC losing contact to domain controller?

The test team as an enemy of development? And how can this be avoided?

When to apply negative sign when number is squared

Why do C and C++ allow the expression (int) + 4?

Noise in Eigenvalues plot

As a dual citizen, my US passport will expire one day after traveling to the US. Will this work?

Why does BitLocker not use RSA?

Who said what about *meanings*?

Does the universe have a fixed centre of mass?

In musical terms, what properties are varied by the human voice to produce different words / syllables?

Is this Half dragon Quaggoth Balanced

How do you write "wild blueberries flavored"?

Inverse square law not accurate for non-point masses?

Why not use the yoke to control yaw, as well as pitch and roll?

malloc in main() or malloc in another function: allocating memory for a struct and its members

Marquee sign letters

Where did Ptolemy compare the Earth to the distance of fixed stars?

Pointing to problems without suggesting solutions

Is there any significance to the prison numbers of the Beagle Boys starting with 176-?

newbie Q : How to read an output file in one command line



How can a perfect fourth interval be considered either consonant or dissonant?



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Perfect 4th is dissonant?Consonance & Dissonance Relative To MelodiesWhat is the difference between grouping overlaps and elisions?What is the history of the Augmented Second in World MusicWhat makes an interval “perfect”? Is this scale-dependent?What did John Cage mean by 'harmony' in his explanation to Arnold Schönberg?The theory behind western pentatonic scalesWhat determines if counterpoint is good or bad?“The intervals considered dissonant have changed since the 'Middle Ages'”; How so?Why is a major third considered more consonant than a perfect fourth?Perfect fourth is dissonant when there's no note below it?










16















I've been reading Ralph Denyer's book, The Guitar Handbook, and in the section on intervals he states that the perfect fourth can be either consonant or dissonant but it's not explained as how or why. Can someone shed some light on this topic for me and help me understand what is being said here?










share|improve this question
























  • I wonder whether there may be a differece when P4 is in different intonations.

    – Tim
    Apr 12 at 16:20






  • 1





    Related: Perfect 4th is dissonant?

    – Richard
    Apr 12 at 19:12












  • @Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

    – phoog
    Apr 14 at 16:15















16















I've been reading Ralph Denyer's book, The Guitar Handbook, and in the section on intervals he states that the perfect fourth can be either consonant or dissonant but it's not explained as how or why. Can someone shed some light on this topic for me and help me understand what is being said here?










share|improve this question
























  • I wonder whether there may be a differece when P4 is in different intonations.

    – Tim
    Apr 12 at 16:20






  • 1





    Related: Perfect 4th is dissonant?

    – Richard
    Apr 12 at 19:12












  • @Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

    – phoog
    Apr 14 at 16:15













16












16








16








I've been reading Ralph Denyer's book, The Guitar Handbook, and in the section on intervals he states that the perfect fourth can be either consonant or dissonant but it's not explained as how or why. Can someone shed some light on this topic for me and help me understand what is being said here?










share|improve this question
















I've been reading Ralph Denyer's book, The Guitar Handbook, and in the section on intervals he states that the perfect fourth can be either consonant or dissonant but it's not explained as how or why. Can someone shed some light on this topic for me and help me understand what is being said here?







guitar theory harmony intervals






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Apr 14 at 14:28







skinny peacock

















asked Apr 12 at 15:43









skinny peacockskinny peacock

2,2302324




2,2302324












  • I wonder whether there may be a differece when P4 is in different intonations.

    – Tim
    Apr 12 at 16:20






  • 1





    Related: Perfect 4th is dissonant?

    – Richard
    Apr 12 at 19:12












  • @Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

    – phoog
    Apr 14 at 16:15

















  • I wonder whether there may be a differece when P4 is in different intonations.

    – Tim
    Apr 12 at 16:20






  • 1





    Related: Perfect 4th is dissonant?

    – Richard
    Apr 12 at 19:12












  • @Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

    – phoog
    Apr 14 at 16:15
















I wonder whether there may be a differece when P4 is in different intonations.

– Tim
Apr 12 at 16:20





I wonder whether there may be a differece when P4 is in different intonations.

– Tim
Apr 12 at 16:20




1




1





Related: Perfect 4th is dissonant?

– Richard
Apr 12 at 19:12






Related: Perfect 4th is dissonant?

– Richard
Apr 12 at 19:12














@Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

– phoog
Apr 14 at 16:15





@Tim in some old temperaments there will be some instances of the P4 that are quite out of tune, but there is no tuning system in which an in-tune P4 is anything other than a 4:3 ratio. This is about the interval's function in counterpoint and harmony, as described in John Wu's answer.

– phoog
Apr 14 at 16:15










4 Answers
4






active

oldest

votes


















17














There is a kind of historic flow back and forth.



A very long time ago during the Middle Ages - when parallel organum was way to harmonize - the perfect fourth was consonant.



Later when triadic harmony developed along with counterpoint the perfect fourth was treated as a dissonance that resolved to a third.



Later yet again, in modern time, the fourth is treated as a consonance in different ways. In fact in modern times there is quartal harmony based on fourths rather than thirds.



From an acoustical point of view the fourth can be considered consonant because it has a relatively 'simple' interval ratio.



The take away is: consonance and dissonance are concepts determined largely as a matter of style. This is true of other intervals. You could consider minor sevenths and tritones as consonant in the blues as they do not require resolution and a blues audience doesn't think they sound "bad." It's a matter of style and aesthetics.



A technical music theory aside: when dissonance is mentioned in any context, it probably is good to pair that with concepts of resolution (or similar concepts like consonance or stability.) In other words, simply saying X is dissonant only tells half the picture. It's really important to look at how consonant and stability are regained from, or interact with, dissonance. That dynamic is hugely important in how music works.






share|improve this answer

























  • A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

    – phoog
    Apr 14 at 16:07


















12














A perfect fourth is considered consonant when it appears as an inversion of a perfect fifth, which is itself a consonant interval. This kind of perfect fourth more or less unavoidable in any practical polyphonic arrangement, where the root is often doubled and the fifth is somewhere in between.



A perfect fourth is considered dissonant when it appears as an interval above the root, for example in a suspended chord or a 64 chord. It is the reason why a V64-V53-I cadence must resolve; the tonic chord in 64 position is actually considered an embellishment of V with a dissonant fourth.



There is a psychoacoustic reason for this. Intervals which first appear early in the harmonic series are consonant; intervals which first appear later are dissonant. If you examine this diagram showing the harmonics in order, you'll find that G appears rather early (third harmonic above C) while F natural is nowhere to be found.



enter image description here



This makes the perfect fourth both the most consonant and one of the most dissonant intervals in the series, depending on how it appears in context.






share|improve this answer




















  • 3





    This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

    – John Doe
    Apr 12 at 19:53


















2














In the musical context, the sense of consonance and dissonance also depends on the respective harmonical context.



In the theory of harmony, consonant intervals are defined as at rest and not in need of resolution. On the other hand, dissonant intervals require continuation into consonance.



The fourth counts - considered individually - to the perfect consonances. As part of a four-part major chord, it also appears consonant. eg. G-C in C-E-G-C



If, however, it is placed in a triad as a (chord-foreign) suspended tone, it forms a dissonance: V sus7 (G-C-F)



The fourth must therefore be resolved in the consonant third of the triad.






share|improve this answer

























  • But the fourth is also dissonant in two-part counterpoint.

    – phoog
    Apr 14 at 16:09


















1














I'm guessing he's adressing how different musical traditions perceives the perfect fourth interval. In other words, historically the perfect fourth was considered dissonant, but in latter periods it has been considered a consonant interval.






share|improve this answer























  • This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

    – Shevliaskovic
    Apr 12 at 17:44











  • The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

    – phoog
    Apr 14 at 16:13












  • @ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

    – skinny peacock
    Apr 16 at 14:47












Your Answer








StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "240"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













draft saved

draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmusic.stackexchange.com%2fquestions%2f82682%2fhow-can-a-perfect-fourth-interval-be-considered-either-consonant-or-dissonant%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown

























4 Answers
4






active

oldest

votes








4 Answers
4






active

oldest

votes









active

oldest

votes






active

oldest

votes









17














There is a kind of historic flow back and forth.



A very long time ago during the Middle Ages - when parallel organum was way to harmonize - the perfect fourth was consonant.



Later when triadic harmony developed along with counterpoint the perfect fourth was treated as a dissonance that resolved to a third.



Later yet again, in modern time, the fourth is treated as a consonance in different ways. In fact in modern times there is quartal harmony based on fourths rather than thirds.



From an acoustical point of view the fourth can be considered consonant because it has a relatively 'simple' interval ratio.



The take away is: consonance and dissonance are concepts determined largely as a matter of style. This is true of other intervals. You could consider minor sevenths and tritones as consonant in the blues as they do not require resolution and a blues audience doesn't think they sound "bad." It's a matter of style and aesthetics.



A technical music theory aside: when dissonance is mentioned in any context, it probably is good to pair that with concepts of resolution (or similar concepts like consonance or stability.) In other words, simply saying X is dissonant only tells half the picture. It's really important to look at how consonant and stability are regained from, or interact with, dissonance. That dynamic is hugely important in how music works.






share|improve this answer

























  • A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

    – phoog
    Apr 14 at 16:07















17














There is a kind of historic flow back and forth.



A very long time ago during the Middle Ages - when parallel organum was way to harmonize - the perfect fourth was consonant.



Later when triadic harmony developed along with counterpoint the perfect fourth was treated as a dissonance that resolved to a third.



Later yet again, in modern time, the fourth is treated as a consonance in different ways. In fact in modern times there is quartal harmony based on fourths rather than thirds.



From an acoustical point of view the fourth can be considered consonant because it has a relatively 'simple' interval ratio.



The take away is: consonance and dissonance are concepts determined largely as a matter of style. This is true of other intervals. You could consider minor sevenths and tritones as consonant in the blues as they do not require resolution and a blues audience doesn't think they sound "bad." It's a matter of style and aesthetics.



A technical music theory aside: when dissonance is mentioned in any context, it probably is good to pair that with concepts of resolution (or similar concepts like consonance or stability.) In other words, simply saying X is dissonant only tells half the picture. It's really important to look at how consonant and stability are regained from, or interact with, dissonance. That dynamic is hugely important in how music works.






share|improve this answer

























  • A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

    – phoog
    Apr 14 at 16:07













17












17








17







There is a kind of historic flow back and forth.



A very long time ago during the Middle Ages - when parallel organum was way to harmonize - the perfect fourth was consonant.



Later when triadic harmony developed along with counterpoint the perfect fourth was treated as a dissonance that resolved to a third.



Later yet again, in modern time, the fourth is treated as a consonance in different ways. In fact in modern times there is quartal harmony based on fourths rather than thirds.



From an acoustical point of view the fourth can be considered consonant because it has a relatively 'simple' interval ratio.



The take away is: consonance and dissonance are concepts determined largely as a matter of style. This is true of other intervals. You could consider minor sevenths and tritones as consonant in the blues as they do not require resolution and a blues audience doesn't think they sound "bad." It's a matter of style and aesthetics.



A technical music theory aside: when dissonance is mentioned in any context, it probably is good to pair that with concepts of resolution (or similar concepts like consonance or stability.) In other words, simply saying X is dissonant only tells half the picture. It's really important to look at how consonant and stability are regained from, or interact with, dissonance. That dynamic is hugely important in how music works.






share|improve this answer















There is a kind of historic flow back and forth.



A very long time ago during the Middle Ages - when parallel organum was way to harmonize - the perfect fourth was consonant.



Later when triadic harmony developed along with counterpoint the perfect fourth was treated as a dissonance that resolved to a third.



Later yet again, in modern time, the fourth is treated as a consonance in different ways. In fact in modern times there is quartal harmony based on fourths rather than thirds.



From an acoustical point of view the fourth can be considered consonant because it has a relatively 'simple' interval ratio.



The take away is: consonance and dissonance are concepts determined largely as a matter of style. This is true of other intervals. You could consider minor sevenths and tritones as consonant in the blues as they do not require resolution and a blues audience doesn't think they sound "bad." It's a matter of style and aesthetics.



A technical music theory aside: when dissonance is mentioned in any context, it probably is good to pair that with concepts of resolution (or similar concepts like consonance or stability.) In other words, simply saying X is dissonant only tells half the picture. It's really important to look at how consonant and stability are regained from, or interact with, dissonance. That dynamic is hugely important in how music works.







share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 12 at 16:25

























answered Apr 12 at 16:15









Michael CurtisMichael Curtis

12.4k844




12.4k844












  • A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

    – phoog
    Apr 14 at 16:07

















  • A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

    – phoog
    Apr 14 at 16:07
















A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

– phoog
Apr 14 at 16:07





A 5/3 chord will commonly include a fourth between the fifth and the doubled root, and in medieval counterpoint a fourth above the lowest note was dissonant, the fourth being consonant only when it was the interval between the third above the root and the sixth. So the idea that the consonant or dissonant nature of the fourth changed over time seems spurious.

– phoog
Apr 14 at 16:07











12














A perfect fourth is considered consonant when it appears as an inversion of a perfect fifth, which is itself a consonant interval. This kind of perfect fourth more or less unavoidable in any practical polyphonic arrangement, where the root is often doubled and the fifth is somewhere in between.



A perfect fourth is considered dissonant when it appears as an interval above the root, for example in a suspended chord or a 64 chord. It is the reason why a V64-V53-I cadence must resolve; the tonic chord in 64 position is actually considered an embellishment of V with a dissonant fourth.



There is a psychoacoustic reason for this. Intervals which first appear early in the harmonic series are consonant; intervals which first appear later are dissonant. If you examine this diagram showing the harmonics in order, you'll find that G appears rather early (third harmonic above C) while F natural is nowhere to be found.



enter image description here



This makes the perfect fourth both the most consonant and one of the most dissonant intervals in the series, depending on how it appears in context.






share|improve this answer




















  • 3





    This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

    – John Doe
    Apr 12 at 19:53















12














A perfect fourth is considered consonant when it appears as an inversion of a perfect fifth, which is itself a consonant interval. This kind of perfect fourth more or less unavoidable in any practical polyphonic arrangement, where the root is often doubled and the fifth is somewhere in between.



A perfect fourth is considered dissonant when it appears as an interval above the root, for example in a suspended chord or a 64 chord. It is the reason why a V64-V53-I cadence must resolve; the tonic chord in 64 position is actually considered an embellishment of V with a dissonant fourth.



There is a psychoacoustic reason for this. Intervals which first appear early in the harmonic series are consonant; intervals which first appear later are dissonant. If you examine this diagram showing the harmonics in order, you'll find that G appears rather early (third harmonic above C) while F natural is nowhere to be found.



enter image description here



This makes the perfect fourth both the most consonant and one of the most dissonant intervals in the series, depending on how it appears in context.






share|improve this answer




















  • 3





    This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

    – John Doe
    Apr 12 at 19:53













12












12








12







A perfect fourth is considered consonant when it appears as an inversion of a perfect fifth, which is itself a consonant interval. This kind of perfect fourth more or less unavoidable in any practical polyphonic arrangement, where the root is often doubled and the fifth is somewhere in between.



A perfect fourth is considered dissonant when it appears as an interval above the root, for example in a suspended chord or a 64 chord. It is the reason why a V64-V53-I cadence must resolve; the tonic chord in 64 position is actually considered an embellishment of V with a dissonant fourth.



There is a psychoacoustic reason for this. Intervals which first appear early in the harmonic series are consonant; intervals which first appear later are dissonant. If you examine this diagram showing the harmonics in order, you'll find that G appears rather early (third harmonic above C) while F natural is nowhere to be found.



enter image description here



This makes the perfect fourth both the most consonant and one of the most dissonant intervals in the series, depending on how it appears in context.






share|improve this answer















A perfect fourth is considered consonant when it appears as an inversion of a perfect fifth, which is itself a consonant interval. This kind of perfect fourth more or less unavoidable in any practical polyphonic arrangement, where the root is often doubled and the fifth is somewhere in between.



A perfect fourth is considered dissonant when it appears as an interval above the root, for example in a suspended chord or a 64 chord. It is the reason why a V64-V53-I cadence must resolve; the tonic chord in 64 position is actually considered an embellishment of V with a dissonant fourth.



There is a psychoacoustic reason for this. Intervals which first appear early in the harmonic series are consonant; intervals which first appear later are dissonant. If you examine this diagram showing the harmonics in order, you'll find that G appears rather early (third harmonic above C) while F natural is nowhere to be found.



enter image description here



This makes the perfect fourth both the most consonant and one of the most dissonant intervals in the series, depending on how it appears in context.







share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 12 at 19:45

























answered Apr 12 at 19:33









John WuJohn Wu

1,50859




1,50859







  • 3





    This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

    – John Doe
    Apr 12 at 19:53












  • 3





    This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

    – John Doe
    Apr 12 at 19:53







3




3





This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

– John Doe
Apr 12 at 19:53





This. Context is everything. A major seventh doesn't sound great until you add the major third (and fifth and ninth) to it. A minor ninth doesn't sound good until you add the minor third and whatever else. Context!

– John Doe
Apr 12 at 19:53











2














In the musical context, the sense of consonance and dissonance also depends on the respective harmonical context.



In the theory of harmony, consonant intervals are defined as at rest and not in need of resolution. On the other hand, dissonant intervals require continuation into consonance.



The fourth counts - considered individually - to the perfect consonances. As part of a four-part major chord, it also appears consonant. eg. G-C in C-E-G-C



If, however, it is placed in a triad as a (chord-foreign) suspended tone, it forms a dissonance: V sus7 (G-C-F)



The fourth must therefore be resolved in the consonant third of the triad.






share|improve this answer

























  • But the fourth is also dissonant in two-part counterpoint.

    – phoog
    Apr 14 at 16:09















2














In the musical context, the sense of consonance and dissonance also depends on the respective harmonical context.



In the theory of harmony, consonant intervals are defined as at rest and not in need of resolution. On the other hand, dissonant intervals require continuation into consonance.



The fourth counts - considered individually - to the perfect consonances. As part of a four-part major chord, it also appears consonant. eg. G-C in C-E-G-C



If, however, it is placed in a triad as a (chord-foreign) suspended tone, it forms a dissonance: V sus7 (G-C-F)



The fourth must therefore be resolved in the consonant third of the triad.






share|improve this answer

























  • But the fourth is also dissonant in two-part counterpoint.

    – phoog
    Apr 14 at 16:09













2












2








2







In the musical context, the sense of consonance and dissonance also depends on the respective harmonical context.



In the theory of harmony, consonant intervals are defined as at rest and not in need of resolution. On the other hand, dissonant intervals require continuation into consonance.



The fourth counts - considered individually - to the perfect consonances. As part of a four-part major chord, it also appears consonant. eg. G-C in C-E-G-C



If, however, it is placed in a triad as a (chord-foreign) suspended tone, it forms a dissonance: V sus7 (G-C-F)



The fourth must therefore be resolved in the consonant third of the triad.






share|improve this answer















In the musical context, the sense of consonance and dissonance also depends on the respective harmonical context.



In the theory of harmony, consonant intervals are defined as at rest and not in need of resolution. On the other hand, dissonant intervals require continuation into consonance.



The fourth counts - considered individually - to the perfect consonances. As part of a four-part major chord, it also appears consonant. eg. G-C in C-E-G-C



If, however, it is placed in a triad as a (chord-foreign) suspended tone, it forms a dissonance: V sus7 (G-C-F)



The fourth must therefore be resolved in the consonant third of the triad.







share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 12 at 17:31

























answered Apr 12 at 16:15









Albrecht HügliAlbrecht Hügli

4,8761320




4,8761320












  • But the fourth is also dissonant in two-part counterpoint.

    – phoog
    Apr 14 at 16:09

















  • But the fourth is also dissonant in two-part counterpoint.

    – phoog
    Apr 14 at 16:09
















But the fourth is also dissonant in two-part counterpoint.

– phoog
Apr 14 at 16:09





But the fourth is also dissonant in two-part counterpoint.

– phoog
Apr 14 at 16:09











1














I'm guessing he's adressing how different musical traditions perceives the perfect fourth interval. In other words, historically the perfect fourth was considered dissonant, but in latter periods it has been considered a consonant interval.






share|improve this answer























  • This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

    – Shevliaskovic
    Apr 12 at 17:44











  • The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

    – phoog
    Apr 14 at 16:13












  • @ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

    – skinny peacock
    Apr 16 at 14:47
















1














I'm guessing he's adressing how different musical traditions perceives the perfect fourth interval. In other words, historically the perfect fourth was considered dissonant, but in latter periods it has been considered a consonant interval.






share|improve this answer























  • This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

    – Shevliaskovic
    Apr 12 at 17:44











  • The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

    – phoog
    Apr 14 at 16:13












  • @ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

    – skinny peacock
    Apr 16 at 14:47














1












1








1







I'm guessing he's adressing how different musical traditions perceives the perfect fourth interval. In other words, historically the perfect fourth was considered dissonant, but in latter periods it has been considered a consonant interval.






share|improve this answer













I'm guessing he's adressing how different musical traditions perceives the perfect fourth interval. In other words, historically the perfect fourth was considered dissonant, but in latter periods it has been considered a consonant interval.







share|improve this answer












share|improve this answer



share|improve this answer










answered Apr 12 at 15:50









ErikErik

355112




355112












  • This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

    – Shevliaskovic
    Apr 12 at 17:44











  • The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

    – phoog
    Apr 14 at 16:13












  • @ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

    – skinny peacock
    Apr 16 at 14:47


















  • This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

    – Shevliaskovic
    Apr 12 at 17:44











  • The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

    – phoog
    Apr 14 at 16:13












  • @ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

    – skinny peacock
    Apr 16 at 14:47

















This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

– Shevliaskovic
Apr 12 at 17:44





This is true, but mainly for the Western Music. Ancient Greece and Japan used perfect 4ths

– Shevliaskovic
Apr 12 at 17:44













The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

– phoog
Apr 14 at 16:13






The idea that the fourth is both dissonant and consonant exists both in traditional western European counterpoint and in the harmonic practice that grew out of it. It's less about being different in different traditions and more about being different in different contexts in the same tradition.

– phoog
Apr 14 at 16:13














@ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

– skinny peacock
Apr 16 at 14:47






@ phoog- I've read your comments and it seems you've got some insight that might be of benefit to me. Would you care to attempt an answer ? I'm still looking for clarity on this subject.

– skinny peacock
Apr 16 at 14:47


















draft saved

draft discarded
















































Thanks for contributing an answer to Music: Practice & Theory Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmusic.stackexchange.com%2fquestions%2f82682%2fhow-can-a-perfect-fourth-interval-be-considered-either-consonant-or-dissonant%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

រឿង រ៉ូមេអូ និង ហ្ស៊ុយលីយេ សង្ខេបរឿង តួអង្គ បញ្ជីណែនាំ

QGIS export composer to PDF scale the map [closed] Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?Print Composer QGIS 2.6, how to export image?QGIS 2.8.1 print composer won't export all OpenCycleMap base layer tilesSave Print/Map QGIS composer view as PNG/PDF using Python (without changing anything in visible layout)?Export QGIS Print Composer PDF with searchable text labelsQGIS Print Composer does not change from landscape to portrait orientation?How can I avoid map size and scale changes in print composer?Fuzzy PDF export in QGIS running on macSierra OSExport the legend into its 100% size using Print ComposerScale-dependent rendering in QGIS PDF output

PDF-ში გადმოწერა სანავიგაციო მენიუproject page