TBH, I reckon a lot of people should listen to a lot of the real tracks in isolation to hear just how clumsy a lot of the recordings are. Metronomes in the background, chair noises, audio artifacts,human noises etc can all be heard. Of course when in among other tracks (especially drums) these are not really audible, but when trying to use guitar tracks in isolation for simple piano/guitar tunes it can be annoying.

I only write this to suggest that there are far more important things (including incorrect chord generation - maj for min, min for maj etc-, real 6/8 RT instrument tracks, proper compound time chord sheets and so on and so forth, that need to be done before we worry about getting 64 bit. For the record I too think the code should have gone 64 bit ages ago and bridged 32 bit plugs (not bridge 64bit plugs to 32bit OS) to run. Which is the way pretty much most modern audio software does things.