accompaniment air alto aria baritone bass basso continuo basso ostinato bassus bourdon bravura burden canto cantus cantus figuratus cantus planus chest voice choral choric coloratura continuo contralto countertenor cube descant dramatic drone drone bass falsetto figured bass ground bass head register head tone head voice heroic high high-pitched high-sounding high-toned hymnal lay line liturgical lyric male alto measure melodia melodic line melody mezzo-soprano multiply by three note operatic part piercing piping plain chant plain song prick song psalmic psalmodial psalmodic refrain sacred sharp shrill singing solo solo part song soprano soprano part strain tenor tern ternal ternary ternate thin thorough bass three-ply threefold trilogic trinal trine triple triplex triplicate tune undersong vocal voce voce di petto voce di testa voice voice part