This phase is reflected in such sources as the renowned Squarcialupi Codex. Compiled in Florence around 1415, it contains over 350 compositions (madrigals, ballate and cacce) and is the source of the majority of the tracks on this album. Francesco Landini (c.1325/35– 1397) is represented by five of his 141 ballate and the virelai ‘Adiu, adiu dous dame’. Also from the Codex are one ballata by Andrea da Firenze (c.1350–1415) and two ballate and a caccia by Antonio Zacara da Teramo (1355–1416).

Three instrumental tracks complete the album, two of them from the ‘London’ Manuscript (British Library) compiled in Florence, probably in Medici circles. In addition to mostly polyphonic music by Landini and other Florentine composers, this tome features several anonymous instrumental works including the lively dances ‘Chominciamento di gioia’ and ‘Tre fontane’. The madrigal ‘Aquila altera’ has a different background entirely: the version presented here is the instrumental arrangement found in the Codex Faenza, a unique volume assembled in the early 15th century containing around 50 Italian and French polyphonic compositions for organ.