Hi Rikki, I have a number of keyboards but as to arrangers, I have a Tyros 2 and a PA1X Pro. I wanted to check the op. manual before I responded to you. The Tyros 2 does indeed have a style assembly process but what it does is somewhat different from what I had in mind....plus, it's a little cumbersome. Apparently the GeneralMusic instrument comes closest and seems (from Dave's desciption) to be the the most flexible of the current crop of arrangers in terms of style creation (or shall we say, re-assembly). However, what is missing is the pool of dedicated (style-specific) Intros, Fills, and Endings, to choose from. The proceedure, as I envision it, would be to:
1) choose a (factory) style
2) choose an Intro 1(or 2 or 3) from a pool of Intros created specifically for that style
3) repeat for Intro 2, Fills, and Endings
4) change tempo if needed
5) save as "new" style

As with the GeneralMusic system, one should also be able to mix and match components from different styles to accomodate tunes such as Green Dolphin Street, as in Dave's example.

Again, we are not talking so much about creating new styles here as we are about keeping existing styles from seeming repetitive as we move from song to song during the course of a gig. The main focus here is to make it very, very, very easy to do.

Peace,
chas