They distinguish between basic performance cues, interpretive performance cues, and expressive performance cues.

The purpose of the study was to examine the relationship of individual expressive performance to ensemble achievement, technical achievement, and musical background.

They sing without once betraying the technical difficulties of these intricate musical jigsaws, instead giving natural, spacious, rich, expressive performances.

Unlike the early sequencers used to play mechanical sounding sequence with exactly equal length, the new ones recorded and played back expressive performances by real musicians.