Hi Gem,
Each chakra has a note associated with it
1 c
2 d
3 e
4 f
5 g
6 a
7 b
Each note vibrates at a particular frequency which resonates with your chakra's
However that is just a touch of the theory

Most people wouldnt know an a from a from c so the best thing to do is to just use those wonderful musical instruments called ears, and just listen, but i mean really listen feel the music inside you and allow it to do what it was created for.
I teach music theory and guitar, and each student that comes to me I find half the time that it turns into a lesson/councilling session so yes music heals and I would not wish to do anything else with my life but play and create music.
Love
Heartworx