U.D. I'm going to have to agree with Esh. It is not a sin to use music, fakebooks and charts during a performance.

I play a song a few times and can then throw away the music. My wife who is a very accomplished pianist and pipe organist can't play Happy Birthday without a chart. The ability to not use music is a gift that not everyone has. Our lead trumpet player who can play anything in any key can't sing Proud Mary without the lyrics even though he's sung it 300 times. These things are gifts.

Esh can we take the anger down a couple of notches and knockoff the profanity? Neither are really necessary to make your IMHO very valid point.