He is widely considered Scotland 's greatest composer prior to Robert Carver ( c. 1485 -- c. 1570 ) .
Johnson spent 36 years at Scone Abbey in Perthshire , Scotland .
Johnson is widely considered Scotland 's greatest composer prior to Robert Carver ( c. 1485 -- c. 1570 ) .
Johnson spent 36 years at Scone Abbey in Perthshire , Scotland .