Mozart piano concerto of which so much of the solo part was left unfinished by the composer. The 1794 first edition had these gaps filled in, and most Mozart scholars such as Alfred Einstein and Alan Tyson have assumed that the additions were made by the publisher Johann André. Einstein is on record as finding André's completion somewhat wanting: "For the most part, this version is extremely simple and not too offensive, but at times—for example, in the accompaniment of the Larghetto theme—it is very clumsy, and the whole solo part would gain infinitely by revision and refinement in Mozart's own style." Nearly all of the passages that necessitated filling in for the first edition lack only simple accompanimental patterns such as Alberti bass figures and chords. For example, measures 145–151 of the first movement, which involve more complicated virtuoso passagework, are fully written out in the autograph. For the less complex portions of the solo, it is clear that Mozart "knew perfectly well what he had to play" and so left them incomplete. The old Breitkopf & Härtel Mozart Complete Works score of this concerto does not make any distinction between what Mozart himself wrote and what André (or someone commissioned by him) supplied. However, the Neue Mozart-Ausgabe volume referenced above prints André's supplements in smaller type, to clearly distinguish them from Mozart's own notes. Critical reception While this concerto enjoyed a great popularity at the time due to its beauty and rococo (or galant) style, later judgments have been more divided. Some authories have judged it to be of a lower quality than the twelve previous Viennese piano concertos or the final concerto in B. This amounts to a complete reversal of critical opinion, since K. 537 used to be one of Mozart's most celebrated keyboard concertos, especially during the 19th century. Still in 1935, Friedrich Blume, editor of the Eulenburg edition of this work, described it as "the best known and most frequently played" of Mozart's piano concertos. But writing in 1945, the musicologist Alfred Einstein commented: Nonetheless, the "Coronation" concerto remains frequently performed today, and more recently prominent Mozart's interpreters, such as the pianist Mitsuko Uchida and the conductor Colin Davis, have described it as an underrated masterpiece. References Sources Wolfgang Amadeus Mozart, Neue Mozart-Ausgabe, Serie V, Werkgruppe 15, Band 8, ed. Wolfgang Rehm. (Baerenreiter-Verlag, Kassel, 1960; BA 4524). Reprinted in Mozart: The Piano Concertos/Baerenreiter Urtext,