All the schools that I’m interested in applying only require one recommendation letter, but they allow optional letters. My main recommendation letter is obviously from a professor, but I was wondering if music teacher from high school would be acceptable as a transfer recommendation letter. She knows me on both academic and personal level, but I don’t know if recommendation letter from high school will be much of a help or if the admission committees will even prefer it.
The music teacher sounds like a solid additional letter. They may want something more current for the primary letter.