Naemonson,

Please look into Cognitive Therapy. Also, please get the following book, "Overcoming Depression--A Cognitive Therapy Approach for Taming the BEAST." (The last word is not shouting, it's an acronym) by Mark Gilson and Arthur Freeman. You can purchase it through Psycorp.com.
You will find it most helpful. Get the Client edition.

Cognitive Therapy is a specific approach to treating depression and anxiety that relies on a number of exercises (charting, and they work.

Physical exercise is a good suggestion given to you. Also, even though you don't find much joy in doing the music now, keep doing it regardless because it will change if you don't quit. The most important thing is to keep active at the necessary things of life but also at things you would normally enjoy.

You can lick this thing.

Frank

Frank