1. (v. i.) Originally, a double song; a melody or counterpoint sung above the plain song of the tenor; a variation of an air; a variation by ornament of the main subject or plain song.

2. (n.) The upper voice in part music.

3. (n.) The canto, cantus, or soprano voice; the treble.

4. (n.) A discourse formed on its theme, like variations on a musical air; a comment or comments.

5. (v. i.) To sing a variation or accomplishment.

6. (v. i.) To comment freely; to discourse with fullness and particularity; to discourse at large.

Nachtmusik Vorspiel absolute music accompaniment adaptation air air varie aleatory aleatory music alto amplify anthem aria arrangement article ballad baritone bass basso continuo basso ostinato bassus canto cantus cantus figuratus cantus planus carol causerie chamber music chamber orchestra chant chirp chirrup choir chorus comment upon composition concert overture continuo contralto criticize croon curtain raiser deal with detail develop diapason dilate discourse discuss discussion disquisition dissert dissertate dissertation ditty do-re-mi dramatic overture drone elaborate electronic music enlarge enlarge upon essay etude evolve examination excursus exercise expand expatiate explicate exposition feature figured bass first approach go into ground bass handle harmonization homily hum hymn incidental music inquire into instrumental music intonate intone introduction introductory study invention lay lied lilt line lucubration measure melodia melodic line melody memoir minstrel monograph morceau nocturne note operatic overture opus orchestration outline overture pandect paper paragraph part particularize piece pipe plain chant plain song preliminary study prelude prick song production program music prolegomenon psalm quaver refrain rehearse in extenso relate at large remark upon research paper review ricercar roulade score screed serenade sermonize shake sing sing in chorus sketch sol-fa solmizate solo solo part sonata sonatina song soprano soprano part special article strain string orchestra string quartet study survey take up tenor term paper theme theme and variations thesis thorough bass touch upon tract tractate treat treat of treatise treatment treble tremolo trill trio troll tune tweedle tweedledee twit twitter undersong unfold vamp variation vocalize voice voice part voluntary warble whistle work work out write up yodel