Mozart's Twelfth Mass, K. Anh. 232 Mozart's Twelfth Mass, K. Anh. 232 Mozart's Twelfth Mass, once a top seller among the liturgical compositions published by Vincent Novello in the 19th century, is a work no longer attributed to Wolfgang Amadeus Mozart. Köchel rejected the attribution to Mozart in the Anhang (appendix) of the first edition of his catalogue of Mozart's works, there listed as K. Anh. 232, and in later editions as K. Anh. C1.04. The mass was published in 1819 as No. 12 in Novello's series of masses by Mozart, which is the origin of its name. Simrock was the first to publish the mass
John Field (composer) were influenced by these works, which are particularly notable for their central movements, frequently nocturne-like. Some of the less known works were also historically important: particularly the piano fantasies, in which Field pioneered the Romantic large scale episodic structure. None of his piano sonatas, and only two of his 7 piano concertos, have a formal slow movement. In performance, Field would interpolate an existing nocturne in a related key or improvise one. This list is arranged according to Hopkinson numbers, introduced in the 1961 catalogue by Cecil Hopkinson. Many of these works were arranged for other instruments and (or) revised