MOZART at ViolaViva Music Publisher
As is known Mozart loved the viola very much and played her with preference also in the quartet. And how much he considered it in his string- and piano quartets, in the string trio KV563 and in both duos together with the violin. However, it will remain a secret to us why he did not write only one viola sonata besides his wonderful sonata for piano and violin. It seems that the type "viola sonata'" was not "modern" in his time.
Thus the ViolaViva music publishing house offers a number of Mozart's violin sonata for viola players:
If the viola wants to participate in Mozart's piano trio, so first of all the "Kegelstatt-Trio" is of course entitled for it. With regard to all other piano trios it is dependant on revisions, by taking over the cello part. In this instrumentation ViolaViva contributes with a creation of the piano trio KV502, which transposes the trio from B-flat major to C-major and brings the viola into the position to challenge many cello passages and above all many conclusions in (almost) original pitch, thus without upward octaving.
The remaining piano trios appeared 2007 in one book in form of a violoncello replacing viola part, which can be used together with the piano- and violin parts of the relevant editions (for ex. Edition Peters, Bärenreiter, G. Henle Verlag and others).
One of many chamber music lovers for quite some time expected new edition of the piano quartet in E-flat major crowns the Mozart dedicated program of the ViolaViva music publishing house. It does not concern the piano quartet KV493, which Mozart left us in original piano quartet form, but is to a large extent a new transmission of the quintets for piano, oboe, clarinet, horn and bassoon KV452 in the usual piano quartet instrumentation with piano, violin, viola and violoncello. An early revision of the piano quartet with horns to the piano quartet with strings still originates from the end of the 18th century of Mozart's pupil Franz Jacob Freystädtler, however, it is out of print for decades. As this transmission shows from today's viewpoint some lack, it was, concerning the revision, only used as a second source besides Mozart's quintet original text.