People who keep practicing for ~20 mins after they master a skill actually lock in that learning. New learning probably won't interfere with it either.
Students decide early in life if they have any musical "talent," and that predicts whether they take music classes later. They don't see music ability as a skill.
If you play a musical instrument (or two...), you response time to sensory stimuli may be faster than it is for non-musicians. No causation here, just an interesting correlation.