 References to Philomela are common in the motets of the ars nova, ars subtilior, and ars mutandi musical eras of the late fourteenth and early fifteenth centuries.Throughout the late Renaissance and Elizabethan eras, the image of Philomela and the nightingale incorporated elements of mourning and beauty after being subjected to an act of violence.In the long poem "The Steele Glas" (1576), poet George Gascoigne (1535–1577) depicts "Philomel" as the representative of poetry (Poesys), her sister Progne as satire (Satyra), and Tereus as "vayne Delight".