A decorative musical accompaniment (often improvised) added above a basic melody

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Discant \Dis"cant\, n. See Descant , n.

Wiktionary Word definitions in Wiktionary
n. (alternative form of descant English)

WordNet Word definitions in WordNet
n. a decorative musical accompaniment (often improvised) added above a basic melody [syn: descant ]

Wikipedia Word definitions in Wikipedia
Discant or descant (, meaning "singing apart") originated as a style of liturgical setting in the Middle Ages , associated with the development of the Notre Dame school of polyphony . In origin, it is a style of organum that either includes a plainchant ...