Wow, reading your post really took me back. I have gone through the exact same thing early in my sobriety. I could not even touch my guitar for about 1-2 years. I too, associated all that was fun and intereting with alchohol and other substances. The music that had been central in my life felt like something I would have to stay away from. Not knowing other guys going through it was tough because most folks never experience that love of music and the community that goes with it etc.
However, I want to tell you that it will get better!!!!! For now, keep it simple and just follow the program as it was designed. You (we) don't need to understand how this thing works, just trust in your Higher Power and the men and women that have gone before us to blaze the path. I'm so grateful to report that I have SEVEN and a Half years of uninterupted sobriety today and my love of the music has returned in ten-fold. Today I play and listen and love music every chance I get. My technical skills as a musician are soooooo much better due to a clear mind.
For now, Its ok to leave it on the shelf while you begin to heal. Remember, giving up alcohol is like losing your best friend to many of us. It takes time to re-learn how to enjoy anything without it. The twelve steps really work despite ourselves, just remember that it is all about action brother!!! We can't think ourselves into right actions but we can act ouselves into right thinking. Nothing will protect us from drinking more than helping another alcoholic... Find a group of guys in the rooms and hang with them. You don't have to be alone ever again. God Speed brother! If you ever need me my email is email@example.com