Can you work at letting other things that are pleasant but not "related" to you help inspire you? Listen to music you like and just enjoy it, not worry at first about creating your own? Curiosity, whether manufactured or "real" has helped me before. Can you look for a "new" sound of someone else's that you like (instead of being able to decide that the old music that's familiar to you doesn't do anything for you). I was watching a couple of TV programs about exercise and they both mentioned "confusing" the muscles so they couldn't get "use to" a workout and thus hit a plateau. Maybe you can "confuse" your emotional muscle with curiosity and look for "new" things or the old things in new ways? Make a little list of "different" things you like to hear or one's you've never experienced and go out and find them? Think of micro-pleasures (hot shower, clean sheets, a particular thing to eat, etc.) and go "get" them, one a day. Mix things up a bit.