Believed to have been compiled as a gift for Isabeau of Bavaria, Queen of France from 1385 to 1422, the Pennsylvania Chansonniere [Penn Ms. Codex 902] contains a wealth of poems that were created for songs, though their musical notation is absent from this rare book. Many of the songs represented in the collection were the work of Guillaume de Machaut, set down here perhaps in honored remembrance of the great poet-composer’s music-making at court.