sentences:  Virgil Thomson pronounced them “The finest string quartet, unquestionably, that our century has known.” In 1953, the year in which they transferred their recording programme to Columbia Records, they gave 59 concerts in the U.S. and Canada.In that year also, Elisa Pegreffi married Paolo Borciani.Recordings which followed included (1954) the Darius Milhaud Quartet No.12, and (1956) the Debussy Quartet, which Robert Kemp described as “miraculous”.