Yep, I made an 8 hour playlist which went onto a little portable mp3/hard-disk system that we have. It was predominately downbeat/chill electronica and dub and started with beats then progressed through dub to minimalist soundscapes (if you want to know specific artists I can tell you, but most would be considered obscure by commercial standards). After Euan was born we put the player under his rocker. And we still listen to it in the car from time to time.