Gamehendge is a fictional setting for a number of songs by the rock band Phish. The main set of songs can be traced back to The Man Who Stepped Into Yesterday (or TMWSIY), the senior project of guitarist and primary vocalist Trey Anastasio, written while he attended Goddard College. The musical was recorded to a cassette tape and submitted along with Anastasio's Senior thesis in July 1988. Many copies of TMWSIY were circulated among fans as Phish's popularity grew but the album was never officially released by the band. Still, the band would frequently perform songs from the album live and, on a few occasions, performed the entire album live, though differently every time. New songs were added to the Gamehendge mythos in the years following the recording of the original 1988 tape.