Well I have (2) keyboards one is a CASIO CTK 811 and I have my 1/4" to usb cable coming from the Headphones out to get the sound I want to use from that keyboard.
My other keyboard is a M-Audio Prokeys Sono 88 It has a usb outlet, midi out, and 1/4" outs
My Casio had midi in/out and just a headphone jack (I use the headphone jack to record from the casio).
I just bought this Magix Music Maker 17 version online.
But Ive been using the older version from 2003 and both keyboard works fine with the old software
and the computer I am using has Windows 7/Vista with a regular sound card.