It should come to your realization that iTunes isn't the cure all for your media needs. Even I know iTunes would be the last place to look.
First - Rude and condescending! Second - there is reason I specifically asked this.
As other people have noted (and I have used them before with success), a simple fan-made MIDI file works on many models. Aside from that, if you have the CD of the music you like, just rip, edit in Audacity to a suitable size, and bluetooth or whatever to your device.
Again, there's a reason I specifically asked about iTunes.
Straight and simple, easy peasy.
Straight and simple for someone who is ignorant to someone else's objectives.
Just because you have a problem with Apple and/or iTunes doesn't mean everyone else does. If you can't be nice then disconnect your keyboard.