That's a good question; I'm often listening in 'shuffle' mode and something comes on that sounds just so awesome on cans, I email another HP fan friend of mine to tell him about it. Of course, none of them are coming to mind right now...
Music that MUST be experienced with cans?
We all know that headphones have a different set of challenges compared to speakers, especially the ability to eliminate the room from the experience, so all music sounds different, but is there music you have found simply MUST be experienced with cans? Like audiophiles haven't lived if they haven't heard these tracks?