I have an Autocom system which gives me full comms capability, ie sat nav, walkie talkie, music. Sometimes I listen to music, sometimes I don't, it really depends on my mood and the type of riding I am doing. If its a short gentle commute to work then I may put some music on. If I'm on a progressive ride through twisties requiring 100 per cent concentration then music is off.

Having the music was invaluable when I was doing the first leg of my euro tour this year. 8 hours, of mostly inane boring german autobahn, the music just about kept me sane.