Been asking for this for years... actually, a LOT more interested in more fills to join up however many Variations you DO get. A 4 Variation arranger needs 16 different fills to cover every possible transition (including Fill-to-Same). Even today's 6 fill arrangers fall far short in providing smooth transitions from any Variation TO any Variation.

Up that to 6 Variations, and the need for radically more fills goes up.

One thing I'd REALLY like to see (only Ketron has it at the moment, I believe) is a different Break/Fill for every Variation... The break/fill that works for Var4 (the busy one) is wildly inappropriate for the Var1.

Something else that might FINALLY make the Tyros sampler actually more than a little used gimmick (and an expensive one at that) is to open it up to multisample import... Akai especially. It's an underused part of the OS while Yamaha brickwall it off from the largest libraries out there. It is WAY past time that Yamaha do Akai import...

But it's Yamaha... is anyone expecting anything ground-breaking? It has taken them 13 YEARS just to try the 76 market again!
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An arranger is just a tool. What matters is what you build with it..!