To teach : Language ? or Music ?

I have had instructors who could have done either.

I used to be able to say that I remember all of the foreign language teachers in my life. The list has grown to a nearly impossible one. Foreign language learning began in grade school for me with an Italian teacher who had access to a language lab. In junior high/intermediate school I had one year of Italian followed by two years of Spanish. By high school freshman year, I was placed in a Regents Spanish class that would have ended my study of language in most high schools. My school, however, insisted that all disciplines be followed throughout the four-year academic course. So, I had Spanish electives.
In the senior year of high school, I took French I. I was in a class of freshmen. It was the first time I felt as if I were the big fish in the little pond. The instructor was rigorous, and a know-it-all and she found me challenging. Unlike most, she rather liked the challenge. She was the bully, and I laughed.
I also had Yiddish both in a private pre-teen school and later on the college level.
Did I mention that I learned German auto-didactically. Not the best way to learn a modern language. Why, you ask? Because the textbooks that I had accessed were from the turn of the previous century. Much of the vocabulary was useless and you can probably imagine what pre-WWI German culture might be like. Not exactly USA-centric!
Along the way I would take a year of Italian or a year of French at a local community college. This would help me build a vocabulary and remind me of the long-forgotten rules of grammar.
Here and there I would come across an exceptional professor. The one who shines in my mind was/is a lesbian from Berkeley by way of Houston. By the time I met her she had had her PhD for a decade and was teaching at a city university in New York. Many years later she told me of her passion for music. "My parents used to play together. Not professionally. Dad was quite accomplished on the violin and mother played piano." She said she had thought of studying music to the higher/highest levels and become a music teacher.
Imagine deciding your academic and life choice as if it were nothing more than a toss of a coin. Heads it's Mozart, tales it's Kafka.
I never cared much for music. I don't play. I don't sing. I don't listen. Oh, I have a collection of 45s and 33-1/3s, but I seldom listen to anything. The radio dial is set to NPR. If I do belt out a song, it's generally a German one. You seldom have to worry about anyone singing along when you're gently singing the words of Heino hits such as
Blau blüht der Enzian