Yeah, text-editing .s files just made things harder for me to understand- bringing in more numbers and stuff to know, I was just like "...I JUST WANT TO HEAR THIS IN THE GAME, PLEASE JUST DO IT >.<". Heh :P
Right now, I've just been using this method to change the instruments a song uses, keeping it the same through the whole song. I know that it's not entirely necessary though- before I knew of the program-changing thing, I used to be quite frustrated at instruments changing before my eyes, and I realised that won't happen if I just cancel out the midi events present, haha.
I very nearly had to ask a question now; a custom song I was trying to insert kept changing tempo from 80 to 120, which was frying my braaaaaaaain. Typically, as I was typing out an extensively detailed "WHY IS THIS HAPPENING?" to you, I set the tempo (from 80 to 80 >.<) in Anvil Studio, and all is relatively well :/
Thanks man! :P