Definitions for "Discant"
Keywords:  purum, copula, notre, dame, organum
the top voice in a polyphonic texture; the label implies that the voice is composed against another important line, usually the tenor.
a style of Notre Dame organum in which the all voices are measured (following the rhythmic modes). Related terms: organum purum, copula.
Keywords:  descant, see
See Descant, n.
a decorative musical accompaniment (often improvised) added above a basic melody