Thanks for the advice but this is a strange problem mainly because I'm learning. I figured out that I'd assigned bass patches to the piano track and fiddle to the guitar and contra bass to the soloist. By muting one by one I did regenerate the whole song but now the melody won't play and even stranger is when I export to .wav the OLD arrangement/generation is what is exported with the same melody and extra three minutes of bass. I've regenerated the track, renamed the track, saved the new generation and the exported .wav file with the new name is of the old arrangement. So, now I can't hear the melody, I can see the melody and edit it but it won't play and I can't save this arrangement, which is actually a little cleaner than the first one. Now, it's a true minus-one progression backing track but I can't share it because it isn't exporting.

I'm not sure if the Bass is midi or RT. I think I tried to make it a Real Track am still working out an approach to song making.

Everything Pak 2013 for Windows. w/16-pak add ons.
Jazz Guitar Masterclass
Instruments: Guitar and Piano
B.A. music from HSU 2001
M-Audio Keystation 49 USB MIDI controller
Dell Latitude E6500 4GB RAM Windows 7 32bit
ASIO4ALL
Coyote WaveTable