I knew you'd have to give up on that mega-thread sooner or later
And could hardly blame you. I hope this provides you a much more concise, workable package of ideas.
Mine (can I change later?):
Make the transport bar (record, play etc buttons) undockable so I can move it wherever I want. Failing that, at least move it from dead center to a far corner of the screen. But undockable would be much better IMO w/the freedom to move it anywhere (much like the other modals).
When in "musical typing" mode (yes I use that a lot! It's not just handy but necessary when on travel), disable the R button starting a recording. I can't tell you how many times this has happened when I don't want it to and there's no point to/need for it when in that mode. And oddly, it isn't always there, only when I have certain "root" notes (how that 1 octave is positioned).
More options to change default settings, for ex. the master volume or what song auto-loads when I start MC.