Jon Mark has been played on NTS shows including Aaron Angell, with Blues For Hobbits first played on 11 December 2021.

Jon Mark (born John Michael Burchell in Falmouth on 8 May 1943) is a British singer-songwriter and guitarist, best known for co-founding Mark-Almond and for his recordings with Marianne Faithfull, Sweet Thursday, and John Mayall. He received a Grammy in 2004.

His first recording was using his given name when he and a former schoolmate, Alun Davies(later of Cat Stevens' band), recorded, as a duo, an album entitled Relax Your Mind, on Decca Records. Both travelled extensively throughout the UK, and France, busking until they secured a job entertaining on a Cunard Line cruise ship.

From 1965 onwards Mark accompanied Marianne Faithfull on her recordings and concerts. Moreover he wrote and arranged some songs for her.

In 1968 Mark and Davies founded the short-lived five-piece band Sweet Thursday which was composed of Mark, Davies, Nicky Hopkins, Harvey Burns, and Brian Odgers.

Mark joined John Mayall's (post-Bluesbreakers) with whom he toured and recorded The Turning Point (1969) and Empty Rooms (1969). There he met Johnny Almond with whom he formed Mark-Almond.

Mark released a solo record for Columbia, "Song for a Friend", in 1975.

Mark moved to New Zealand in the mid-1980s, and released a number of successful solo Ambient music recordings on his White Cloud record label, as well as collaborating with other artists on traditional Celtic and folk recordings and producing other artists. A release of Tibetan Monk chants Mark recorded and produced with his wife Thelma Burchell won a Grammy Award in 2004.