sentences:  In their late concerts the group focussed especially upon Beethoven and Schubert, often devoting a recital to two works, a single masterpiece by each composer.In December 1977 Piero Farulli was obliged to retire from the group owing to illness, and was replaced by Dino Asciolla.However following a tour to Israel it was decided to bring the Quartet to an end in 1980.