Hi,
I'm writing this from my real work, so bear with me if I haven't double-checked the terminology...

I like the AABB-format editor (you know what I mean), even though it is slightly rudimentary.

It would be significantly easier to use, if you for each part (A,B, C etc) could also enter a short comment, like "Verse", "Bridge", "Break2" etc.
This wouldn't really have to DO anything, apart from helping you to remember which part of A,B,C,Y, Z ... really is that second break.

Cheers, Mikael