if you have an OS X computer you can use this little app i've written:
http://cl.ly/0B2C3O2h1M00it works with most TRX and EFM machines, but only with live input, you can't seem to properly live-record pitches as p-locks with the MD(?).
you need a closed-looped MIDI connection to your computer and set the proper devices in the app. then make a kit with some e.g. EFM machines, and SAVE it. then hit "get current kit" in the app, after that you should be able to play the selected track chromatically, or activate the "cycle tracks" checkbox for poly mode.