OK, went back and revisited the earlier (and edited) posts, and now I see where you're coming from. But I'm afraid I've seen (and played with) my share of great players who WERE jackasses, too..!

So I guess you could say I'd rather listen to a jackass that could play than one that couldn't (but I'd rather BOTH could quit the 'jackassedness'!)

Mind you, that's probably what they say about US, too!
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An arranger is just a tool. What matters is what you build with it..!