Given that the odds of Yamaha correcting a mistake with a software update is slim to none, I'd say the ability to loop audio on the multipads is a good place to start...

Then all the T5 owners can start to wonder how long they'll have to wait for that correction too in the T6!

You know what... I am not waiting for a replacement for my BK-9 whatsoever. I think I have YEARS of productive use in its future, and quite possibly more capabilities than it has now via updates (it already does a boatload more things than when I bought it).

Kinda telling that an S950 user can't WAIT for the next one...!
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An arranger is just a tool. What matters is what you build with it..!