In order to hear MIDI playback of a MIDI device in Pro-Tools LE, you must route the analog outputs of your device into available inputs of the Digi-001 and set up a Stereo Auxiliary track for monitoring. In order to hear MIDI playback of a MIDI device in Pro-Tools LE, you must route the analog outputs of your device into available inputs of the Digi-001 and set up a Stereo Auxillary track for monitoring. * Connect the 1/4 inch L and R outputs of the MIDI device to any available inputs on the DIGI 001(I.E. 7/8 inputs.) * In your Pro-Tools session, select the File menu and choose New Track. In the New Track dialog box, click on Audio Track and choose Aux Input Stereo from the pop-up menu. The dialog should now read "create 1 new Aux Input Stereo." Click on the create button.* In the Mix Window, set the inputs of the Auxillary track (Aux) to the Digi 001 inputs you have connected to your MIDI device. (I.E. Analog 7/ Analog 8)* Bring up the fader on the Auxillary track to the desired level.