The buttons are self-explanatory. Run in turbo mode. Click the timebar to move in the song. Press F to fix the timebar if it looks messed up. V1.0.5 - https://scratch.mit.edu/projects/214664510/ Moving here soon as well.
Sadly there can really only be one song because of the way that I've done it. If you want more songs per project then tell me, but I'll have to make the timebar less exact. Software I used: http://www.nch.com.au/splitter/index.html If you use my idea (my structure is only for this project), leave a comment with your project name and credit me on it.