His videos are old and he seems to have left. But they are still relevant at teaching you some fundamental coding skills related to this program. Good luck
Topic 2, if you look in the pictures you can find RWiiUG's free bgm program. That will teach you how to play custom music. As far as creation it's MML and there are some cool programs that allow you to write MML in a more traditional setting like litterbox. I hope that's correct.
You can find more by googling smile basic source
I can't wait for no one to play this game because it gets taken down for copyright infringement.
But feel free to take whack jobs advice. You should put Samus in it too. And maybe some Digimon.
Oh and don't forget Mario.