Whole post updated. Mostly because I learned to work without midis, so I don't rely on them anymore which changed everything. So know it's (very roughly) sorted by higher priority and further future songs. I know it's a lot of songs for the 'near future', but honestly I tend to work on just whatever I feel like, so I can't really predict which one from this pool of songs will be picked earlier.
Also I added some new songs and updated my progress on current ones (spoilers!!).