Is the bird singing a homage to Mozart?
Or did Mozart make homage to those original choristers, the birds?
This little guy is a chiffchaff. The page I drew him on was a biography of Mozart- sensible biographies state Mozart died of Rheumatic fever, though this one is rather romantic and states that he died because he thought the Requiem he was writing was his own.
I was so taken with this guy I scanned him in and made a screenprint of him!Look!