if it was like music

If it were* like music

When using be in an if clause for an unreal conditional sentence, always conjugate it as were, no matter what the subject is. Even if the subject is first-person singular (I) or third-person singular (he, she, or it), still use were with an if clause in unreal conditional sentences.

https://www.grammarly.com/blog/conditional-sentences-was-instead-of-were/