i use an mp3 player to ski with on the hill--when im going down the hill i listen to something nice and mellow, like ryan adams, oasis, counting crows to keep me calm and not get pissed off at people who cut me off...before im jumping, or while im waiting, ill listen to something really grungy and distorted weezer, nirvana, living end, or something kinda fast and happy so ill be in a really good mood when i jump--ska usually workks well for that.