Is it possible to make a NEW midi logger for NSF/NES roms

I don't think any automated MIDI generator will sound good. It's really hard to have the program distinguish between volume changes and envlope patterns (like ADSR)... plus effects like rapid duty cycle changing never translate well to MIDI instruments. Not to mention custom waveforms via the DMC will be totally lost, and sound effects will never translate to anything remotely resembling the original. And I'm sure there are other issues too.



But I have to ask... why not just use NSFs? They sound the best and are smaller in size (you can get a whole soundtrack in a file that's as big as a single .mid song).