Member29 March, 2021 at 7:03 am
Here are two videos of a chromatic harpist playing while standing. (While she has a different sort of harp, the concept remains the same.)
I’ve seen footage of people playing a Celtic harp in a similar way as well.
Some people with pelvic floor issues also have difficulty standing for a length of time, so you might want to test the concept out by stacking some floor foam mats (remarkably sturdy stuff) to raise the height of the harp and see if that works for you.