With the publication of the score and parts of the D-major Horn Concerto K. 412/514, the Mozart expert Henrik Wiese adds another milestone to his edition of this important work group which was begun in 2013. In the course of time, the piece that was first edited in the Old Mozart Edition of 1881 as Mozarts 1st Horn Concerto turned out to be a pasticcio: while the opening movement is indisputably by Mozart, the elaboration of the Rondo must now be attributed to Süssmayr. This movement is transmitted solely as a sketch in Mozarts hand. The present edition contains both the Süssmayr Rondo (K. 514 = smWV 502) and the Mozartian Rondo fragment (K. 412) which was carefully completed by Wiese. The performer will thus have the choice between the traditional version (with Süssmayr) and the version presumably intended by Mozart, all in one practical edition.