Olivier Messiaen's Quartet for the End of Time, Part 6

Using Isorhythm to Treat Time

            We discover Messiaen’s unique treatment of time in the homophonic section of the second movement of Quatuor pour la fin du Temps (1941).  The isorhythmic piano accompaniment consists of a repeating series of eight descending chords in sixteenth notes at pianississimo (PPP). Initially four voices comprise these chords.

The repetitious and consistent nature of this isorhythmic accompaniment could be labeled “static” because it creates a clear rhythmic pulse through its rhythmic regularity.  See (link: previous post) for a discussion of static versus dynamic elements.

Cycle, Interrupted

Messiaen uses interruptions of this cycle, however, to confuse the listener’s perception of time (see example below).  Each initiation of the eight descending chords in sixteenth notes functions as a kind of hypermetric beat (!) that creates, in the context of triple simple meter, a sense of hemiola.  By interrupting the cycle at irregular intervals with new harmonic material, thus delaying the next repetition of the eight primary descending chords, Messiaen distorts the regularity of hypermetric beat duration and thereby destroys the perception of a clear hypermeter (which we use, whether consciously or subconsciously, to mark the passing of time). Can you perceive it? Give it a listen and tell me what you think! (Buy an MP3 of the second movement here!)

Maintaining a Clear Rhythmic Pulse

Messiaen maintains unity and a clear rhythmic pulse in the piano, however, by continuing the sixteenth note isorhythm in descending progressions of chords with as many as eight voices (glad I don’t have to play that!).  The B section concludes with the cessation of descending motion and the beginning of sustaining harmonies through the repetition of chords in sixteenth notes. This conclusion foreshadows the piano accompaniment of the fifth movement. 

Excerpt of the eight descending chords in sixteenth notes, indicated by the brackets, which primarily comprise the piano accompaniment beginning at Reh. D of the second movement.  This excerpt is taken from the piano in Movement VII at Reh. C+4, which borrows extensively from the second movement.

To read the next post in this series, click here.