(n.) The act of harmonizing.

Nachtmusik absolute music accommodation adaptation adjustment air varie aleatory aleatory music arrangement assimilation attunement balancing chamber music chamber orchestra charting coaptation codification composition coordination descant electronic music equalization etude evening exercise incidental music instrumental music instrumentation integration intonation invention methodization modulation nocturne normalization opus orchestration ordination organization phrasing piece planning preparation production program music rationalization reconcilement reconciliation regularization regulation resolution ricercar routinization score setting solution sonata sonatina squaring string orchestra string quartet study suspension symmetrization synchronization systematization theme and variations timing tone painting transcription trio variation work