Glass Harp was a Youngstown, Ohio trio who released their debut album in 1970. In contrast to the tight production of their studio albums, the band became known for their ability to stretch arrangements in the live setting. Coming to prominence as a opening act for many of the most successful progressive and jazz-rock bands of the early 70s, the band is today remembered as one of the prototypical jam-rock bands––a genre that gained steam throughout the 70s and 80s and only fully bloomed in the early 90s.