Part of the reason I play my arranger a lot, is not just to get the music down right...it's to learn the intricacies, the layout, and the shortcomings (and their subsequent workarounds) of the instrument so well, that playing it becomes second nature, and it is no longer any kind of an obstacle between me and the music I want to express.

Some tunes require a sort of planned choreography between buttons, sliders, keys, wheels and pedals.

It's like planning dance steps in a routine and going over and over them.

The more you rehearse, the less chance there is of a stumble when you actually perform.

Ian