Many successful musicians used to play for a few coins on the sidewalk. But now,anyone wanting to perform in central Munich has to first pass a tough casting call. Albert Dietrich,a municipal worker for more than 40 years,hands out one-day performance permits every morning. Although he doesn't play an instrument himself,Albert empathizes with the musicians. But he has been known to send off the odd Elvis impersonator,saying The King would turn around in his grave if he heard this.