A one-trick pony
So, here’s a bit of trivia for you. Ludwig van Beethoven, who composed Symphony No. 5 in C Minor, was an absolute genius behind the piano. However, whenever it came to anything else outside of the music world, he was a self-described doofus.
That might be a bit too harsh on him since he was like the 18th century Michael Jackson. His father was horrible to him, forcing the young Ludwig to study music all day and night. In the end, they both became international superstars, but they probably resented their respective fathers for treating them so cruelly. If you only learn music day in and day out, you’d probably be bad at other things, too.