The audience is going to be FAR more into what YOU play, than what you play it ON...

We have all seen great players play up a storm on a POS Casio or the like... and listened to embarrassingly awful renditions on TOTL arrangers

Any of the top arrangers will do a great job for you. Now YOU have to do a great job for the audience (because the arranger isn't going to do it without your help!)...

The only answer you are ever likely to get here is 'Play what I play'. EVERYONE thinks they made the perfect choice (or they wouldn't have bought it ). But somehow, we still end up with a great variety of choice. What does this tell you..?

That you should make your OWN mind up about this...
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An arranger is just a tool. What matters is what you build with it..!