Canto

n.	1.	One of the chief divisions of a long poem; a book.
	2.	(Mus.) The highest vocal part; the air or melody in choral music; anciently the tenor, now the soprano. Canto fermo (Mus.) the plain ecclesiastical chant in cathedral service; the plain song.

Noun	1.	canto - the highest part (usually the melody) in a piece of choral music
	2.	canto - a major division of a long poem

Spenserian stanza, accompaniment, air, alto, antistrophe, aria, baritone, bass, basso continuo, basso ostinato, bassus, book, burden, cantus, cantus figuratus, cantus planus, chorus, continuo, contralto, couplet, descant, distich, drone, envoi, epode, figured bass, ground bass, heptastich, hexastich, lay, line, measure, melodia, melodic line, melody, monostich, note, octastich, octave, octet, ottava rima, part, pentastich, plain chant, plain song, prick song, quatrain, refrain, rhyme royal, septet, sestet, sextet, solo, solo part, song, soprano, soprano part, stanza, stave, strain, strophe, syllable, tenor, tercet, terza rima, tetrastich, thorough bass, treble, triplet, tristich, tune, undersong, verse, voice, voice part