We found Peter to be very professional in addition to being very talented. We asked him to provide elegant but fun background music at a retirement party of about 70 guests whose ages ranged from the 20's to the 90's. His mix was excellent - we received many, many compliments on Peter's playing and his selection of tunes. We also loved that Peter provides several options during his performance - keyboard, clarinet, etc. Several people asked where we had found him - we told them about Gigmasters.com. I would highly recommend Peter Kostopoulos to anyone who needs a talented keyboardist for any type of event. We thank you, Peter!