Gnidrolog was a progressive rock band from England that was active during the 70s. They're known for having a unique sound that is often compared to better known bands such as Van Der Graaf Generator, Jethro Tull and Gentle Giant. The band was founded in 1969 by twin brothers Colin Goldring and Stewart Goldring, who were joined by drummer Nigel Pegrum who came over from a band called Spice (the band that would later evolve into Uriah Heep), Peter Cowling (AKA "Mars") on bass, John Earle on vocals and Charlotte Fendrich on piano.