John Graham is a British record producer, songwriter, vocalist who is also known under the pseudonyms Quivver, Skanna, Stoneproof and Space Manoeuvres.
He was a former member of music production team Tilt and has recorded and toured with the electronic group Hybrid in the past.
With Neil Barry, under the alias of "Quivver", he released "Saxy Lady" and "Twist & Shout" on A&M Records Lt. UK.
The next year, Graham released his first album Oid on Lost Language under the moniker Space Manoeuvres.
In 2008, Graham's album under the Quivver name, Dirty Nails & Vapour Trails was released on Critical Rhythms.