I'm not sure if that's the cause, I've played some customs that only have 22 frets using my 17 fret guitar and they don't freeze, I just can't play the high notes...
I believe the one I played is RBHP Foreplay/Long Time pro guitar upgrade
Although maybe that is it, I have no idea.
The reason the Pro Guitar is freezing is because I didn't compile the song with a 17 fret chart. If I just bypass the midi validator in Magma and compile the 22 fret chart as a 17 fret it should work for you even though the Mustang can't hit those notes. I'll update the song soon so you can test it out. I appreciate you helping me with the Pro Guitar charts because hardly anybody else seems to play them or give any feedback at least.
UPDATE: Give this version a try and get back to me when possible. If it works for you I'll just take down V1.
http://www.mediafire... ... imeFliesv2
This version doesn't load on anything. Album art is blank, no audio preview in the song menu.
The version 2 that I just uploaded of Time Flies works for me. Album art, audio preview all looks perfect in game. I even loaded up the Pro Guitar chart using my midi pro adapter and all is good. Did you try deleting your song cache? I can confirm that the heavy part on Pro Guitar for "Normal" is missing numbers on the chords in game. They do show up in Reaper so I'm not sure whats going on there.