The two most tantalizing losses for classical clarinettists are the autograph scores of Mozart's Concerto and Quintet, both supposedly lent by the composer to his friend Anton Stadler and subsequently lost. All surviving sources for clarinet misrepresent these pieces by adapting the solo part to the smaller range of the modern clarinet (Stadler's instrument had a basset extension to low C). One advantage of transcribing works such as these, therefore, is that the piano can take over the majority of the clarinet part without a restriction on range. The present arrangement was most likely made by an anonymous contemporary of Mozart. . Format: Score and parts. Classification: Instrumental Repertoire. Media: Printed music.