What you are missing, I think, Donny, is that the number of people that would even WANT to play some 30's music, and THEN do a bunch of hiphop and rap has got to be on the fingers of one hand!

You want to sell arrangers to today's kids?

Take out ALL the older styles...

If they WANTED to play Bossa's and Quicksteps, they'd already HAVE an S900 They don't. They want Timbaland styles. They want Outkast styles. They want 50 Cent styles. They want Muse styles. They want as many styles as we do. But not the same ones.

All the rock styles in any arranger today go back twenty years (at least!). You would kill a block party in four bars with any of the rap or hiphop styles we have! It is no wonder that arrangers are dismissed by younger players, to the point where they don't even want to see the WORD 'arranger' anywhere on a product....
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An arranger is just a tool. What matters is what you build with it..!