Axis System - Analysis of Music For Strings, Percussion and Celesta

Analysis of Music For Strings, Percussion and Celesta

The form of the first movement of Music for Strings, Percussion and Celesta provides an illustration of axis-based substitution, where the opening is based upon the pole of the principal branch of the tonic axis (A, A-C-E♭-F♯), the middle contrasts the opening and the end of the first movement by being based on E♭. In the second movement the beginning and ending based on C are contrasted with the middle based on its pole F♯. The two movements themselves are contrasted through the first being based on the principal branch (A-E♭) and the second on the secondary (C-F♯).

Movement Section
Beginning Middle End
I A E♭ A
II C F♯ C
III F♯ C F♯
IV A E♭ A

It is interesting to note that the pattern Tonic-Super Tonic-Subdominant relationship repeats itself counter clockwise around the circle of fifths. This pattern creates the root movement of a ii/V7/I chord progression. The tonic dominant relationship is repeated around the circle in clockwise fashion.

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