I just got this Yamaha MX61 because I became too frustrated with the Korg X-50 (much too difficult trying to locate sounds). So far, I love the keyboard and am having fun exploring it. However... the manual (like most manuals) is very unclear on how to do specific tasks. I want to save as a file particular sounds for particular songs so that during a live performance I don't have to be spinning the wheel (literally) trying to locate the specific sound I want - twice actually when you consider there are usually two sounds for each song that I'm going to be playing. Thank you.