Mac, I'd say you are on exactly the right track. My inclination would be to start at the beginning for the complete newbie. Just like in the Dummie books. I know so of the more advanced users are thinking wow It'll be years before they get to the really juicy stuff, but by implementing an approach of variations it could serve everyone.

1. This is how to enter chords: Step by step instruction, maybe a scree shot or two, then explain using the chords with shots, holds, etc. Things like C. or C.., C,F,

2. opening midis, the melody track situation, copying tracks, The basic things that most newbies don't even think of. That would give them a jump start, and keep some of the more advanced users entained as well hopefully.

File size could be an issue if there are too many videos, but I think a few videos would enhance the learning experience quite nicely.

toucher