Apparently, he got his inspiration from another Venetian - the artist Giovanni Bellini. Bellini's San Zaccaria Altarpiece features an angel playing a violin wearing a rich peach/pink robe.

Giovanni Bellini, Feast of the Gods (1514/1529). Courtesy of National Gallery of Art, Washington. The painting shows a gathering of Roman gods and goddesses, tended upon by satyrs and nymphs in a ...