I think this is a great logo. Clever idea to have the wine glasses as the piano, and the whole thing has a very 'classy' look about it, which I'm sure you were going for. My only issue might be with the & sign; it seems a bit big to me, and the way it's displayed make the 'tagline' off center, which doesn't sit well with a logo that is symmetrical besides that.
I appreciate the time you have put into your comment! I completely agree with your about the tagline being off centre and also the & sign being a bit on the big side, I will work at it a little bit more soon, Cheers.