So this is, essentially, Korg's new 'two styles at a time' system, but using two arrangers to achieve it...
If Ketron were to adopt ONE totally new arranger feature that is utterly groundbreaking, following in Korg's footsteps here (I don't see anything proprietary in the ability to run multiple styles simultaneously) would be it...
This one feature is the end of 'style fatigue', it exponentially increases the amount of ROM styles (you can make MANY different sounding styles simply by combining only TWO styles, now extrapolate that to hundreds of styles you can mix and match!😱).
There are quite a few things that Korg's system needs work with (synchronization, integration with the Songbook, picking which intro/ending gets used, and timebase adjustments for things like this, where you are in essence mixing and matching a 3/4 timebase against a 4/4 timebase...
Korg made an amazing leap forward but has failed to capitalize on the potential. Here's Ketron's chance to leap ahead....
Yes indeed, but with more flexibility. Although having the dual style capability in the same arranger does give you a lot of the flexibility you've touched on above, the limitation (which this method of using 2 different brand arrangers breaks) of having both styles use the same sound source is broken. Added to this, you can now tap into features that one offers which the other does not.
One totally new arranger feature KETRON has introduced in the EVENT series (an expansion from the Audya and SD9 series) is having complete Audio styles. Despite some limitations, these do eliminate style fatigue and virtually place a complete live band (and not the work of just a good midi musician style programmer) at your fingertips. Now, the ability to combine both Audio and Midi to compensate for each other's limitations. and create styles that run on both is groundbreaking in the music industry (as far as styles with complete audio elements with real-time chord changes go).
It still possesses challenges, however, which are some of the reasons no other manufacturer (yet) has ventured into this new world (... except Yamaha, who attempted this with the Tyros 4 [50 styles which had audio drums only] ).
Thanks,