Canto I, Stanza 6; this can be compared to: "The bloom of young Desire and purple light of Love", Thomas Gray, The Progress of Poesy I. 3, line 16; also: "Oh, could you view the melody / Of every grace / And music of her face", Richard Lovelace, Orpheus to Beasts; "There is music in the beauty, and the silent note which Cupid strikes, far sweeter than the sound of an instrument", Thomas Browne, Religio Medici, Part ii, Section ix.https://en.wikiquote.org/wiki/Lord_Byron