Mozart's works for piano duet are amongst the most important contributions to this repertoire. This scholarly-critical edition based on the 'New Mozart Edition' makes these works available in a revised form and includes a new foreword. The publication also contains an appendix with the fragments K. 497a (Fr 1787i) and K. 500a (Fr 1791a) which are completed by Michael Töpel, as well as individual pieces for organ, mechanical organ and musical clock in transcriptions for piano duet. Informative forewords to the main part and the appendix together with explanatory notes on the evaluation of the sources complete this volume, which will be indispensable for both teachers and performers. Newly engraved revised Urtext edition based on the 'New Mozart Edition', taking the latest findings into account First arrangement for piano duet of Mozart's Andante in F for musical clock K. 616 Lead-ins and fermata ornamentations by Michael Töpel Includes detailed forewords (Ger/Eng) and information on the evaluation of sources (Ger/Eng).