Robin was my husband (1966 - 2011). Contrary to the above, he is not deceased and lives near Peebles in the Scottish Borders.
It is correct that he played with the Corrie Folk Trio and Paddy Bell (later the Corries - after Bill and Paddy left). Prior to that, he played in the Glenesk Band, Jim Johnstone's Scottish Country Dance Band, and afterwards with Jim Macleod's Band, Jimmy Shand's band, his own band of course - just put together from a group of friends for radio broadcasts.   
Due to business demands (he and I built up a landscaping/nursery business from 1968 - 96), he stopped playing on a regular basis, in favour of one night a week on Radio Forth - the local Edinburgh station, playing requests for traditional scottish country dance music and related music. For a couple of years he also did another programme called The Folks around Robin where he invited a dance band or Scottish entertainer into the studio, interviewed them and played some of their favourite tracks.
In the early days he played the double bass, but later swapped to accordion - which he only learned to play properly after we were married. He played entirely by ear, only taking half a dozen lessons (on bass) in order that he could read music - really essential when he was doing television session work on the bass in the sixties.
He doesn't play in public any more but still has a tune at home I believe.