I'm not so sure you have and old soul, maybe you have an experienced sceptic one but your facts tell me you'r young in spirit.
Anyways music can sometimes lead you a bit sad or melancolic, it's not so bad to burst into tears from time to time, it frees you from bad spirits and stress, I do it from time to time...
As we share music we also spread some love and that's the only thing that will remain when our phisycal body is dead.
Keep on with what makes you feel good, take appart what makes you get sad, that's my view.
Hugs and love :)