I was listening to a classic music station yesterday, and I heard the story of a professional pianist whose hand was injured in an accident. He then started learning trumpet and two years later he was a professional trumpeter. I didn’t catch the musician’s name.
I was not surprised that a professional in one instrument could become a professional in another, but I was surprised that he did it in only two years. It probably helped that he was no longer able to play piano; I imagine if he wanted to learn trumpet in addition to piano he would not have become so proficient so quickly.
If you go by the rule of thumb that it takes about 10 years to master anything, this professional pianist was 80% of the way to becoming a professional trumpeter before he touched a trumpet. Or to put it another way, 80% of being a professional musician who plays trumpet is becoming a professional musician.
Transferable skills are more difficult to acquire and more valuable than the context in which they’re exercised.