"not to experience something they regard as difficult". I would disagree. If there is such a thing as addiction to music, it eases difficult situations, but you still realize you have to have the difficult experience. Of course you may say addiction would be the wrong term with reference to music.

But I would say a lot of the symptoms of addiction are there. Can you imagine a day without it? Do you seek out others who do it? Do you put off other things in order to do it? Etc.