John Drumbo French from Captain Beefheart and The Magic Band worked with Thompson on two albums along with Fred Frith and Henry Kaiser.
Those two French, Frith, Kaiser and Thompson albums led me to this.
Also, Richard Thompson taught Hugh Cornwell (of The Stranglers) how to play the bass guitar in a band when they were both at the same school (Emil and The Detectives?).
With a career spanning 50 years and playing with two of my heroes (French and Cornwell) Thompson has produced a fascinating EP.