pianos with smaller keys the other.
I think that Hoffman had narrower keys on his piano.Thal
I wouldn't be surprised to someday see an equivalent of sports steroids for hand dexterity. All the young musicians would start using them to win competitions and begin setting impossible benchmarks in technique.
Interesting thought......of course the mind is so involved in piano playing. If you're not that bright, the drugs might make your fingers faster than what your mind can keep up with. What kind of playing would that produce. Probably quite comical.