Hi AJ,
I was referring to the Ketron & Yamaha format the software arrangers play.
VArranger can play my old SD1+ styles reasonably well midied to an sd2. The style format certainly doesn't have the same possibilitie as the Korg PA3X or even PA800 format with it's guitar mode , the 6 cv's for variations based on a variety of chord types (my understanding has always been my sd1 styles that the cv's had to be recorded as maj, min & 7th chords, unless I got that wrong). The ability to have different time signatures in the various style parts. Being able to have 32 bars for a style part including fills etc . It's a very versatile style format.
Personally I think the software arrangers are good value for money for one's pc, but , if I was going to spend thousands of dollars on a keyboard that used the current available software arrangers, I'd sooner buy an Arranger keyboard be it a Yamaha, ketron , roland or korg.