Wind instrument compatibility

Using a wind instrument with a piezo pickup that sends audio signal. Will G2midi work the same as it does with guitar audio input?

You can test whether it works for your instrument and demands with the demo trial from jamorigin.com/download

This is something I have been confused about. I have always used MG2 with an audio interface unit, with the audio from my guitar going into my computer via a USB link. Does MG2 do the conversion to MIDI or has that already taken place in the interface? I had always presumed that MG2 accepted an analogue signal. am I correct? If it does then a piezo pickup should work, but might require a preamp to match the computers input to get a proper signal for the conversion.