click the stage to play the example so it's been a full year since i made that other project with the note block songs and the sync fix and promised to make a tutorial. i haven't been working on it this whole time, of course, but i've finally gotten around to making it. the majority of instructions are in the code comments, so be sure to look inside the project before asking me questions
example song is the theme to deus ex full song here: http://scratch.mit.edu/projects/34013122/