In the old days of long distance commercial air flight, you often had the option of listening to various music selections across a wide variety of genres using the armrest dials and an awful pair of airline headphones. With the help of the playlists being published in the inflight magazine, I'd often find some interesting new tracks.
With the new touchscreen personal entertainment centres and the option to use our own headphones we now have, the ease of browsing and enjoying lots of new music is wonderful. I'm currently listening to Belle and Sebastian's latest album - Write about love. Plus, it's worth noting that the decent choice of movies also brings up the opportunity of finding some new music on the soundtrack.