Using midi mode on gsnap with audacity?

[emberabbit]

I'm trying to do something similar to autotuning with a plug in called gsnap. Gsnap has a midi mode, where (to my understanding) you can take a midi input and "tune" an audio file to that midi file. I'm not synched up to a keyboard or anything, I just loaded a midi file and an mp3 (that I want to tune to the midi), but am having a lot of trouble actually having audacity integrate the two.

Gsnap website says:

"Midi Mode: When this option is selected, notes will snap to the nearest currently depressed MIDI note, sent either by a controller being played in real-time, or by a pre-programmed MIDI sequence. For this to work, your sequencer must be set up so that GSnap can receive both audio and MIDI messages."

Not quite sure if the last part is true to audacity, but it seems like it could be. I've looked on other forums and found something that I think might work. Problem is, how do I:

add audio track for vocals, turn monitoring on

add midi/virtual instrument track with gsnap on it (and of course set gsnap to midi mode), a plug in already on it? is that the same thing is applying in effect?]

click "io" on second track and set to receive from track 1(vocal)

click routing/grouping matrix tab on bottom mixer, and blank out the output from track 1 to master

I don't know how to do any of the steps.

Thank you!

[steve]

Audacity does not yet support MIDI functionality.