 The Rossi Codex included music by Jacopo da Bologna, the first famous Trecento composer.The "Ivrea Codex", dated around 1360, and the "Squarcialupi Codex", dated around 1410, were major sources of late Trecento music, including the music of Francesco Landini, the famous blind composer.Landini's name was attached to his characteristic "Landini cadence" in which the final note of the melody dips down two notes before returning, such as C–B–A–C.