I sit. I like the idea of strapping on my electric harp and moving around, but I doubt my back would like it. And if it is going to be stationary I’d rather sit than stand, even if I can put it on a stand high enough to stand. I find my posture while playing standing tends to not be so good. Probably just what I’m used to, but sitting I know how I’m supposed to feel in correct position, not so much when standing, so sitting I feel more confident.