Yea, I play piano, but I do not see how it would help. Not trying to troll, but it is similar to typing on the computer keyboard with exception to chords.
I will tell them about my painting, sculpting and training as a dental laboratory technician.
Painting translates to a knowledge of colors which is IMMENSELY important for shade matching a tooth and sometimes you may intraorally stain (mimics painting, dexterity wise) a crown before cementation, because the shade is off.
Sculpting demonstrates your ability to manipulate 3d objects, which is nice when you are trying to burnish amalgam fillings for instance. New cad/cam technology also relies heavily on 3d modeling and trust me, not every scan will yield a perfect design, so there is much tweaking before you mill the crown/bridge. It also helps in other areas, but I will not blab on about it.
Dental lab technician... well, that is obvious. I was primarily fixed/ceramics, so creating tooth anatomy is second nature to me now.