4/3: Difference between revisions

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'''4/3''' is the [[frequency ratio]] of the just perfect fourth. Its inversion is the perfect fifth, [[3/2]]. In the [[Wikipedia: Medieval music #Early polyphony: organum|florid organum]] of Medieval music, 4/3 was reliably considered a consonance, and indeed was frequently emphasized. Once major thirds with a tuning approximating [[5/4]] began to be treated as consonances, however, the perception of 4/3 was altered to where it was at times considered a dissonance.

In [[User:Aura|Aura]]'s music theory, which is in some respects derived from both florid organum and the practices of later counterpoint, it should be noted that the traditional 1/1-4/3-3/2 suspension is considered a dissonance purely because of the presence of the [[9/8]] between the 4/3 and the 3/2, and likewise, a 1/1-4/3-16/9 quartal chord is also considered a dissonance because of the [[16/9]] interval between the notes on the outside of the chord.

In [[User:Aura|Aura]]'s music theory, which is in some respects derived from both florid organum and the practices of later counterpoint, it should be noted that the traditional 1/1-4/3-3/2 suspension is considered a dissonance purely because of the presence of the [[9/8]] interval between the 4/3 and the 3/2, and likewise, a 1/1-4/3-16/9 quartal chord is also considered a dissonance because of the [[16/9]] interval between the notes on the outside of the chord.

== See also ==

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 '''4/3''' is the [[frequency ratio]] of the just perfect fourth. Its inversion is the perfect fifth, [[3/2]]. In the [[Wikipedia: Medieval music #Early polyphony: organum|florid organum]] of Medieval music, 4/3 was reliably considered a consonance, and indeed was frequently emphasized.  Once major thirds with a tuning approximating [[5/4]] began to be treated as consonances, however, the perception of 4/3 was altered to where it was at times considered a dissonance.
-In [[User:Aura|Aura]]'s music theory, which is in some respects derived from both florid organum and the practices of later counterpoint, it should be noted that the traditional 1/1-4/3-3/2 suspension is considered a dissonance purely because of the presence of the [[9/8]] between the 4/3 and the 3/2, and likewise, a 1/1-4/3-16/9 quartal chord is also considered a dissonance because of the [[16/9]] interval between the notes on the outside of the chord.
+In [[User:Aura|Aura]]'s music theory, which is in some respects derived from both florid organum and the practices of later counterpoint, it should be noted that the traditional 1/1-4/3-3/2 suspension is considered a dissonance purely because of the presence of the [[9/8]] interval between the 4/3 and the 3/2, and likewise, a 1/1-4/3-16/9 quartal chord is also considered a dissonance because of the [[16/9]] interval between the notes on the outside of the chord.
 == See also ==