As far as the chords are concerned, not a problem. They go together just fine. Where the whole thing starts to break down for me is the interaction of the lead riff against the chords. It's just not as clean as it could be IMO. In other words, make absolutely sure you are beginning each chord change with a note in the riff which fits better. Most were fine, but there were a few changes that didn't work for me. All in all I thought it was very cool. With a little spit and polish I believe it will be killer.