Beethoven, though choleric and violent in his anger, was placable. The theft of the Quintet in C dedicated to Count Fries, as related by Ries, and Beethoven’s warning against the pirated edition, will be remembered. Nottebohm has sufficiently established the fact that the engraved plates were not destroyed, as supposed by Ries, but afterwards again used with the composer’s consent and even his corrections. A short letter to the offending publisher (June 1) shows that his wrath was already appeased, and seems to indicate a purpose to grant him the copyright of a new quintet--a purpose which, under the pressure of his opera, and the subsequent invasion of the French, remained unexecuted. Ignatz Pleyel, born in 1757, the twenty-fourth child of a schoolmaster at Ruppersthal, a village a few miles from Vienna, a favorite pupil of Haydn and just now the most widely known and popular living instrumental composer except his master, came from Paris this season to revisit, after many years’ absence, the scenes of his youth. He brought with him his last new quartets, “which,” writes Czerny, were performed before a large and aristocratic society at the house of Prince Lobkowitz. At the close, Beethoven, who was also present, was requested to play something. As usual he let himself be begged for an infinitely long time and at last almost dragged by two ladies to the pianoforte. In an ill humor he grabs a second violin part of the Pleyel quartet from a music desk, throws it on the rack of the pianoforte and begins to improvise. He had never been heard to improvise more brilliantly, with more originality and splendor than on this evening! but through the entire improvisation there ran through the middle voices like a thread or ~cantus firmus~ the notes, in themselves utterly insignificant, which he found on the accidentally opened page of the quartet, upon which he built up the most daring melodies and harmonies in the most brilliant concerto style. Old Pleyel could show his amazement only by kissing his hands. After such improvisations Beethoven was wont to break out into a ringing peal of amused laughter.