I have the same issue and I found that over time, the severity changes so sometimes I can sneak music listening in without being bothered so much. Also, try various jaw stretching and positioning exercises. Sometimes I can get the tinnitus to subside by slackening and relaxing my jaw. I've been dealing with it for at least four years. It may take some time, but I have confidence you will find a head/jaw position that will allow you to still enjoy your music...iem's and all.
Also, be aware there are certain foods and medicines that can aggravate it. If you can avoid them, it can help. It may never completely go away, but you can learn to manage it and enjoy music.
And I say all that with my tinnitus raging at this moment.
But later, I'll find a way to listen to music and not the rushing in my head.
Don't give up, you can too!
Cheers and Best of Luck!
-HK sends