A friend recorded several chords in both WAV and MP3 format and sent them to me. How (or is it even possible) to select one or two and use them as instruments on a Yamaha PSR-S970? I think I read MIDI is somehow involved and I never use MIDI. Anybody have ideas or solutions? I need country songs to sound more "country!"

That would probably lead to style creation... if it can be done easily by a Klutz like me... but that is another topic.