We already posted all of these (links, at least, can't remember if I embedded many of them to the forum) months ago Donny.
And I have posted links to them in MANY of my posts here, being some of the best BK-9 demos out there (Roland should hire these guys to do ALL their arranger demos!).
Not really quite sure why everyone is waking up so late to this gem of a keyboard. It's quite forward looking, despite the price and weight..!
Maybe if it were MUCH heavier and more expensive, everyone would take it seriously? LOL
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An arranger is just a tool. What matters is what you build with it..!