I'm just looking for someone who I feel safe around, even if we were alone.
Someone who'll actually listens to me.
Someone who's a musician, either professionally or who is in academia. This isn't limiting by the way since the vast majority of musicians I know are married to other musicians. It's extremely difficult to have a relationship with a non-musician because they don't understand how much time is spent practicing, rehearsing, etc. And if you marry another musician, then you'll either end up playing together and/or teaching together so you do get to spend some time together.

Other than that…I guess I would want someone who doesn't start fights/arguments for no reason and constantly fight with me. And other normal things like they don't hit me, make fun of me, etc.