She wants to be a musician...than you should go all in.
Put her into music camp. Buy her the best equipment available. Get her the best instructors. Push her...make sure she practices. Put her in competitions against people better than her.
It will be good for you too. It is time for you to learn about something new. Expand your universe a little.
I sort of let this slide 1st time through, but just as an FYI: we already do all that. She plays 3 different brass instruments (trumpet, baritone, tuba), sight-reads bass and treble clef, mentors her peers in the school band and plays in the extracurricular jazz band (as does DS), has a private instructor. We push her to play difficult pieces, and she's entered her 1st solo competition for this Feb. I play guitar as does DS (and he plays cello and stand-up bass). Both of them have surpassed my skills and knowledge and I couldn't be prouder. We attend all of their performances.