I think any one finger system has its strengths and also weaknesses compared to others. I’m pretty sure, should you go looking for it, that Yamaha users could point to certain chords they CAN shortcut that Roland make more complicated. Or different.
They are ALL corners you paint yourself into, and leaving is messy. They lead to brand inflexibility, and when your favorite brand leaves the market, that’s it… you can never buy a far better sounding, more advanced arranger ever again. That’s a hell of a price to pay to avoid having to adapt to another system.
I can name a dozen things on Korg or Yamaha’s OS that have gone FAR past the G70 and BK9. And, to be quite honest, if I found any of them things I REALLY wanted, I wouldn’t let a few differences in a one finger system stop me from getting one.
But that’s just me.
Case in point… the chord sequencer. The ‘you can use the bender any time’ feature.My act while I had a G1000 revolved around its use. Then the G70 dropped it (it actually got dropped immediately after the G1000 with the V/VA series, but I didn’t get one of those). If I followed Ted’s way, I would have missed out on the wonderful G70 and wouldn’t have been able to buy another arranger until the BK9. That would have been at least 15 YEARS!!!
But the G70 was SO much better, I simply stopped using arranger mode live, and used the sequencer to ‘capture’ the arranger while I played the chords, and then used the sequencer to play it back. Problem ‘solved’. But only because I was willing to completely change how I play.
Mire yourself in ANY proprietary system and a dead end awaits…
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An arranger is just a tool. What matters is what you build with it..!