This section of the subaru highway leading up to Mount Fuji have rumble strips in the middle of the road that have been spaced at certain intervals to play a song. It's very unique and impressive - take a listen. "Miagete goran yoru no hoshi wo" by Kyu Sakamoto is the name of the tune. There are three streaches of road in japan which do this. Special thanks to rrz128 for letting us all know the song name and artist!