I'm strictly a roadie, so I don't get into a whole lot of wilderness on my rides. I ride farm roads mostly, so I guess I could take in some 'moos' from the cows
For me, riding to tunes helps me go further. I adjust my speed/cadence to the beat of the music when I'm out by myself. When I'm in traffic, I usually shut the music off or turn it down as low as possible so I can hear. I've been doing this 7 years and never had a problem (knock on wood). I understand the side that this is dangerous/stupid/crazy/etc. But for me, I enjoy my solo rides more to tunes.
"Only the meek get pinched, the bold survive"