The folks over at Gannett might not like my saying it, but addiction’s not always a bad thing. Sure, heroin eats your soul and meth eats your face, but there are subtler pleasures whose tight grip on your sense of self-discipline does neither harm nor detriment. Some people garden; others copulate; but there is only one non-narcotic pastime that can truly take hold of your body and spirit. I am speaking, of course, of music.

You all know the feeling — the irresistible urge to play that song just one more time, the uncontrollable humming in class, the sense of powerlessness before your iPod’s repeat function.