Anyway, if anyone finds a good selfcontained midi library in C, I could take a look.
Harteex, can you please look TIMIDITY from CZDoom release? it have a good instruments
I've taken a look, at least it's C and it seems to include some good things... however there is also quite much things I have to strip away. I don't know right now when I'll have time for that.
On another note, I have successfully implemented backlight time, so that it turns off the screen after a while.
I've also added a config file where you can specify a path to the music files, if you don't want to have them in the same directory as the actual APP.
In the config you can also specify the backlight time. Volume is now saved to this file on exit.