Rikki,
Yes you can create patterns on the XD3 module. You can also record songs, but on the SD1 and song can be created track by track, up to 16 and on the XD3 anything you play can be recorded but no overdubbing capabilities. You get one crack at it! and it becomes a midifile on either a floppy disk or on an optional hard drive.
George Kaye
Kaye's Music Scene
Reseda, Ca.