If you self-publish your music, you will not have to share your copy write with anyone, and you are not bound to any contacts. So, despite the many benefits of self-publishing, they are not meant for everyone. But if you are ready to invest your time and effort into self-publishing your music, you can learn how to do it.
For self-publishing, you need to register as a publisher with a PRO so that you can get the royalties that are provided to publishers. Before registering, you need to ensure that you have not published your music elsewhere. At times, people accidentally publish their work without even realizing it. Once you learn that your music is not published anywhere, find PRO to register as a publisher. You can register with any of these three major PROs: BMI, ASCAP, and SESAC. Each of them offers unique benefits and has drawbacks. Once you are done with your research, register with any one of them.