Don’t get me wrong... I have made the same mistake myself, even when I kept my old familiar!
As a working pro, yes, there’s that rush to show off the new toy on the gig, and it sometimes left me moaning about well rehearsed habits no longer being valid. I struggled for quite a while with the loss of the touch screen going from the G70 to the BK9.
But eventually, I realized that less tactile alternatives often worked out better. Nowadays, I set up at home far more carefully, with the upside being on the gig I now do next to nothing except play and sing, and my show and my enjoyment is the better for it. Without being willing to abandon my regular workflow, I may never have enjoyed all the considerable advancements the BK-9 offered.
Sometimes, to fly, you have to let go... 😎🎹
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An arranger is just a tool. What matters is what you build with it..!