On Radio 2 the other night I heard some discussion about how the format we buy music in affects how we listen. For instance, on a cassette, even if you don't like a track there's no straightforward way of finding the start of the next one. So you just listen to the end anyway. For instance, when I first listened to "The Nightfly" by Donald Fagen there were some tracks I didn't much like (Maxine), but as I was listening on cassette I listened anyway. And now those are some of my favourites. Perseverance paid off. Also, when you listen to a vinyl LP, you finish the first side and there's a sense of expectation when you turn over and listen to the start of side 2... The CD and MP3 formats mean we're more likely to "snack" on musical stuff - if something doesn't catch our ear we just click on to the next track, and end up browsing through an album listening to a few seconds of each track. How much decent music is going unheard because we flick through it and don't really engage, when a bit of perseverance would pay long term benefits?