You must get a lighter harp, Rebel;-)
I am learning (very slowly) Cajun accordion.
While looking for tips to help get over initial feelings of inadequacy in my slothful fingers,
I came across an instructional video by Mark Savoy.
Mark is one of the top performers of this instrument, and he says that it is all in the feet, not the hands.
He was inferring that you must feel the beat in your feet when sitting to play this instrument,
and that goes for guitar & fiddle as well.
Foot tapping is where it's at for this guy.
I guess this can apply to all styles of dance music.

Before you ask, he did not specify which foot!