Variable-data composition involves the use of data to conditionally:

His compositions involve a synthesis of African traditional material (often from his own ethnic group, the Yoruba people) and contemporary classical music.

Does the claimed composition involve more than "well-understood, routine, conventional" elements?

About 30% of the composition involves some improvisation, "like a jazz lead sheet or a written out fiddle tune."

Wagner's compositions, furthermore, involved a dramatic "programme" on which the full significance of the music was to depend.

Young cites these sounds as inspirations in later life, and his compositions often involved drones and atypical tuning.

It is also in fact an algebraic group, since the composition involves only polynomial operations.

The composition and compilation of this venture involved extraordinary labour and effort, in addition to expense.

Such a composition was usually the work of a few days and might involve as many as 4 composers.

His compositions involve the use of jazz informed by French wit and elegance.