Quivver has been played on NTS shows including Andras , with Some Kind Of Bliss (Quivver Mix) first played on 11 August 2022.

Quivver is producer, vocalist and songwriter John Graham. He also uses the aliases Skanna, Stoneproof and Space Manoeuvres - Skanna for drum and bass, Stoneproof for house and Space Manoeuvres for trance. He is a former member of 90's production team Tilt and has previously worked with Hybrid, notably as a guest vocalist on the "I Choose Noise" album.

In 2005 he takes part for the Planet Funk album as vocal member. In 2006, Graham appeared on progressive house/breaks act Hybrid third LP, I Choose Noise as a vocalist. Graham has also toured with the group as a semipermanent vocalist, along with Charlotte James. In 2008, Graham's album under the Quivver name, Dirty Nails & Vapour Trails was released on Critical Rhythms.