Elastic
Phrases and Additive Rhythms
Elastic
phrase duration and rhythmic complexity characterize the opening theme of this
movement. Phrases are “elastic” because Messiaen varies the number of rhythmic
values in each phrase. These are known as “additive rhythms.” No meter given,
so barlines are merely used to mark the end of phrases. Notice how the number
of shorter rhythmic values leading up to a quarter note or half note differs
from phrase to phrase in the example below.
Example: Theme of Movement VI at Rehearsal A. Brackets indicate rhythmic palindromes. |