[3] In 1971, drummer Robert Wyatt asked Pyle to play instead of him on one track of Daevid Allen's solo album Banana Moon.
In 1972, Pyle worked with Paul Jones (who had been singing with Manfred Mann) and with British singer Bridget St John, before founding Hatfield and the North with the Miller brothers and Richard Sinclair in 1972.
Following Hatfield, Pyle joined Miller and Stewart in National Health as well as playing in other projects, including Soft Heap with Hugh Hopper, Elton Dean and Alan Gowen.
In 2005 Pyle joined Phil Miller and Richard Sinclair in a re-formation of Hatfield and the North, with Alex Maguire handling the keyboards.
On 29 January, all three were reunited for the first time in fifteen years when Pyle sat in with the Richard Sinclair Band for a few old numbers ("Above And Below", "Share It", "Halfway Between Heaven And Earth" and "Didn't Matter Anyway") during a gig at Whitstable's Horsebridge Arts Centre.
The rejuvenated Hatfield made its official live debut on 18 March 2005 at the Mean Fiddler in London, and a brief tour of Europe followed in June.