music processing

I am curious how the music processing works. That is how stepmania is able to take in any song a user downloads and turn it into a series of arrows to click. I skimmed the code base to see where this processing might happen but there's a lot to go through! What files or libraries should I take a look at?

Thanks and great project!

Stepmania doesn't generate the arrows. The charts are loaded from simfiles. Usually the notes are placed by hand, because autogeneration tends to give poor results.

I am curious how the music processing works.

Spoiler (click to view)Very carefully.