A few days ago I mentioned in this blog an angel-trombone painting by Procaccini. Well, that one led to another image by the same artist (as these things often do). Here it is, along with its caption, below. You can also see it in context in the 17th century timeline and in the HubPages article on angel-trombonists.
1624-25—Milan, Italy: A red-chalk study by Camillo Procaccini for one of the ceiling compartments in the church of SS Paolo e Barnaba includes an angel-trombonist (see below image; public domain) (British Museum; see also Neilson, Camillo Procaccini, Paintings and Drawings, pl. 289).