Music in the woods is a quiet smooth running bicycle. The barely discernible click of shifting gears. The soft pop sound of a pinecone being flicked off the trail. The song of a woodpecker in the distance, the squeal of a startled pig on the trail. Ahhh, all music not usually found on an MP3 or bike mounted stereo.
Or the tune rushing through my head as I try to gain speed on a trail I know like the back of my hand. My minds stereo plays Aerosmith, Pat Benatar, Led Zepplin, Foghat - just to name a few.