The following question relates to an old instrument, I’m afraid, the Yamaha psr9000pro! How can I physically find the number and type of the existing sound card within the keyboard , and how can I find out which computer sound cards are compatible with the keyboard sound card. I am hoping to record by midi from keyboard to computer onto cakewalk software, correct or modify any mistakes and play back through the keyboard speakers and subsequently record to cd. Would appreciate any useful help!