The piano version of the B flat major Quintet Op. 34 prepared by Carl Maria von Weber himself will no doubt cause some surprise among clarinetists as well. To this day few people know that the composer arranged his work for clarinet and piano as soon as he heard about the success of the original scoring. Weber, himself a talented pianist, transposed the string quartet sound to the piano in an effortless and very idiomatic manner. In Weber's version for clarinet and piano, the Quintet proves to be just as suitable for concert performance as for the rehearsing of the original chamber setting. Ulrich Leisinger's source studies show that Weber very carefully followed the publication of the first edition in 1816. Divergences from the quintet version (EB 5830) are indicated in the new edition.