Collecting them and then knowing which one to use by looking at the track alone.
If you cared nothing about math until uni, I would probably try revising everything from middle school - it can be done pretty effectively but learning with a patient person subjects you are doing right now can be good enough.>>7109326
Hello Gomfy, have you ever played Touhou?
I'm doing fine btw, just had a weak night.>>7108302
Then stop thinking about it.