The Phantom of the Busk

He plays on street corners...
the "Godfather" theme,
or "Les feuilles mortes".
Sings a half-tone off key...
on Lennon's "Imagine",
like a wounded goat.
Rats scurry away,
as he preys on tourists,
and people with no taste.
The Phantom of the Busk is here!
For your spare change!