ref: dd03cbbe2b688eac26011ac0ea0ada4047e5beb0
dir: /OPL-TODO/
opl-branch TODO list Needs research: * Some instruments have pitch offset down by one octave (eg. #36) - what determines this? * Strategy when no more voices are available is still wrong * Scale levels don't exactly match Vanilla (off-by-one) Bad MIDIs: * deca.wad MAP01 * gothicdm MAP05 * Hell Revealed Other tasks: * Menu volume control * Pause music * Add option to select MIDI type in setup tool