Nice to see someone else with the patience and love to keep playing the same arranger for ten years!

I just don't see the point of trading away a cherished and well learned piece of gear that keeps you and your audiences happy for a few more sounds and one or two minor features (oh, and maybe a dozen new styles!)...

Usually at the cost of several thousand dollars, too...
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An arranger is just a tool. What matters is what you build with it..!