Fugal passages are also found in the "Missa Solemnis" and all movements of the Ninth Symphony, except the third. A massive, dissonant fugue forms the finale of his String Quartet, Op. 130 (1825); the latter was later published separately as Op. 133, the "Große Fuge" ("Great Fugue"). However, it is the fugue that opens Beethoven's String Quartet in C minor, Op. 131 that several commentators regard as one of the composer's greatest achievements. Joseph Kerman (1966, p. 330) calls it "this most moving of all fugues". J.W.N. Sullivan (1927, p. 235) hears it as "the most superhuman piece of music that Beethoven has ever written." Philip Radcliffe (1965, p. 149) says "bare description of its formal outline can give but little idea of the extraordinary profundity of this fugue ."