Hi, Thank you for your reply. I chose the Technics Forum because I'm really wondering how people record the sounds from their Technics keyboards to "any" music software program. I don't think I'm doing anything wrong where Garageband is concerned. I can post my questions there too but I was really pleased to find a Technics forum!

Do people simply connect the "line out" of the keyboard to the "line in" of a computer? I have an electric guitar running through an amp with a line out. I've connected that line out to the line in on the mac and it works fine. Do keyboards "have to" go through an audio interface before the computer?

I don't know whether you can help re: my second query above which was... what the PC/MAC connection is exactly for. Recording midi only needs the midi leads from the keyboard so is the switch for something else?! Thank you very much.