Craig, can you explain how you accomplish that? When I have tried Melodyne on guitar chords, I get dozens of overtones instead of six strings.

You need to use a version with polyphonic pitch detection, and drag the resulting audio into a MIDI SONAR track. Melodyne Essential won't do the job. 
 
Here's a link to a song I'm working on. Check out the guitar figure that starts it, then go to 0:50 - the synth part is extracted from the guitar figure. At 1:27, you can hear the synth in isolation. At 1:57 it's doubled with the guitar. It took surprisingly little cleanup.

Awesome song. amazing hooks, great beat.

Anderton
Thanks, scook. Those guys are persistent, aren't they...
 
I might as well add an update to the thread that although converting program material from WAV to MIDI is not really doable, I've been having good results with Melodyne (Editor version) converting guitar chords to MIDI. It requires a little cleanup but so far, it's an effective way to do "MIDI guitar."
 

So this is a hack on Sonar's site or what? https://www.youtube.com/watch?v=u4b5r7fm25o
 

I said "program material," not monophonic tracks. There's a difference. Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords. Neither works well for program material. Then again nothing else does, either.

Anderton
I said "program material," not monophonic tracks. There's a difference. Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords. Neither works well for program material. Then again nothing else does, either.

and as "I asked" does this feature work or not? https://www.youtube.com/watch?v=u4b5r7fm25o
 
 

11Dreams

Anderton
I said "program material," not monophonic tracks. There's a difference. Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords. Neither works well for program material. Then again nothing else does, either.

and as "I asked" does this feature work or not? https://www.youtube.com/watch?v=u4b5r7fm25o

 
and as "I said" "Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords." To simplify, that means "yes."
 

Anderton

11Dreams

Anderton
I said "program material," not monophonic tracks. There's a difference. Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords. Neither works well for program material. Then again nothing else does, either.

and as "I asked" does this feature work or not? https://www.youtube.com/watch?v=u4b5r7fm25o

 
and as "I said" "Melodyne Essential works fine for sax, voice, bass, guitar leads, etc. Melodyne Editor works for polyphonic tracks, like guitar chords." To simplify, that means "yes."
 

lol, yup, that was my problem, Melodyne not installed on laptop. That also worked fine on my real system. peace!
I didn't realize that Melodyne is the key to using this feature. Peace!