Okay, i'm kinda getting into audio stuff on my mac, and I have the program Garritans personal orchestra.. it's an amazing program that has sounds that sound like a real orchestra.. and in a few weeks i'm getting the M-Audio Keystone 61-key keyboard, so I can record in garage band as well as GPO (Garritan personal orchestra). The thing is GPO is not a recording program. It only has a keyboard and sounds. The program needs to be "plugged" into a digital recording software. I'm using Digital Performer 4. I know there is a way to make the device that it records be "GPO". Like in other words, instead of recording from keyboard to Digital Performer, i'm recording from GPO to Digital Performer. Can anybody help me with this? Thanks!