
Cubase quite likely has some MIDI sounds (which take the place of your sound module) packaged. Scenario A : if you just want to record the mic and MIDI (say piano) together you could use a simple DAW package like Cubase Lite (NOT Ableton because it has no MIDI support). So there are different ways that you could do this: The mic does make an audio signal but it is very small and will need to go through a preamplifier to bring it up to "line" level - this is basically to make the mic signal bigger, to a size (voltage-wise) similar to the output of the MIDI module (if that's what you use). The sound module you use might be a separate piece of hardware (a box with a MIDI in connector and an analogue audio output) or a "virtual" sound module which is part of some audio recording package ("DAW"). (You can generally choose which instrument you want to play with the keyboard from the ones available on your sound module.) It needs somewhere a MIDI sound generator to convert MIDI into sounds. The MIDI keyboard doesn't actually make any sound.
