I ride alone all the time on average for 2 hours per ride and understand how tunes can make the ride so much enjoyable. That being said, I NEVER NEVER NEVER ride with headphones. I have an iPod Shuffle and could listen easily with it tucked in my jersey but cannot do it for sake of my SAFETY. No matter how low you turn your volume it’s a distraction. I understand the motivation of music because I cannot run without. I am guilty of doing it when I run at night which is quite dangerous. That being said I would never ride with tunes. You need all your senses alert when riding with cars.