Quite recently I read Julian Barnes' book "Nothing To Be Frightened Of". A meditation on death and dying, it's very good, but perhaps not to be read actually, you know, in the hospital.
In it he writes about the idea that, not only will we die as individuals, but everything we create will at some point be experienced for the last time. Every book will have a final reader. Every song, too, will have a final listener.
Now some songs roll on through the culture, like giant blocks of stone pushed by multitudes. Others, though, get left behind. (Some of these songs undoubtedly deserve this neglect, but for others, it's a shame.) I realised that there's one song I play, just to myself and at least once every couple of weeks, that I've been playing my whole adult life, and realised too that I might be one of a very few people in the world who know and play this song.