The pinnacle of my custom charting career.
I promise you, I will put out quality customs sometime later instead of 1-3 part customs that are only one minute long. I promise.
Custom uses single-track audio, but it is in the keys stem since it is only one instrument. In my opinion, I don't think it qualifies as having "full multiracks."
RB2con in "Other Downloads."
Preview video, courtesy of Fat Ha1p3rt