

The Hosa MIDI to USB interface allows you to connect any MIDI device directly into your computer. Maybe you’re looking for a portable solution so you don’t have to drag your audio interface everywhere. If you don’t have an audio interface or are already using all your interface’s MIDI ports. For single MIDI applications without the use of a traditional audio interface, the Hosa USM-422 allows you to connect a single MIDI device via USB to a desktop or laptop computer. If not, open Preferences, click the MIDI tab and where it says "Default Midi."(can't remember it exactly), select NONE.When you have multiple MIDI devices, it’s helpful to use a MIDI interface, which will give you more MIDI ports and added flexibility. Try playing on each controller and you should get proper triggering from each. Hold Alt and click either track's record button(holding Alt will make both go into record-ready). On your stereo instrument tracks(with your drum and piano plugins inserted), in the box that defaults to "All", change your instrument tracks so that the Roland kit is listed for your drums track, and the keyboard is listed for the piano track. Select to show "Instruments" and a new row will appear across the very top of your MIX windows channel strips. Now, choose the MIX window and hit the VIEW menu. For the keyboard, I would select channel 1(for a simple setup) and select all channels EXCEPT 10(which is usually reserved from drum/percussion midi anyway) and close the Midi studio window. Select the input path for each by choosing the midi path each is using. Choosing manufacturer and model is not important(you can skip those if you like). Create an instrument for each(the Roland kit and the keyboard). Start by setting up your instruments(midi controllers) in the Setup>Midi>Midi Studio window.

Makes sense and I do it all the time(actually with 3 controllers).
