I've had a good attempt at coming to grips with Band-In-a-box.

I stopped at the 2013 edtion which came on a 2 Gig hard drive.
My intention was to create backing tracks with a simple rhythm section.
Bass, drums and keyboard.
Despite the many many iterations and bloated amount of content they still can't develop a convincing method of ending tunes.
Every now and again I'll try the next demo to see if they have finally addressed this elementary function but no.

Maybe next year.

cheers, Mark.