fractions — Mathematics. a number usually expressed in the form a/b. a ratio of algebraic quantities similarly expressed.
parts — a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house; to glue the two parts together.
adjective ensembles
soli — a musical composition or a passage or section in a musical composition written for performance by one singer or instrumentalist, with or without accompaniment: She sang a solo.
