Mike, I have not owned, but sat down at a Motif years ago and remembered the 5 performance ARPs setup, each of which, I believe, could be selected on the fly to create backing pattern rhythm variations. I am under the impression that the 8 Montage performance "parts" are equivalent to the Motif's 5 arps where you now get 8 rather than 5 fully orchestrated rhythm patterns to choose from , e.g base, drums, guitar, + synth, strings, vox etc, and you can play those 8 apps like successive loops with seamless sound switching. So basically, you would have a wide range of pattern variations, but not the fills. And, I imagine, that if you wanted to, you could change some of those preset arps into a custom fill of your own and make that part of your 8 pattern setup. In that sense, you would have a stage keyboard with some arranger characteristics. Does that sound right to you?