For example, when I read about autism, I experience existential angst, which prompts me to read more about autism. Now I'm basically an expert.
Britte wrote:
And, if I understand you correctly, music that might remind you of the primary trigger, can trigger your perseveration, as well.
What I'm actually saying is my reaction to the music is intensified by having an already strong mood. Music which would normally inspire feelings in me would inspire much more feeling, prompting me to listen to it repeatedly.