Weber Clarinet Concerto No. 2 in Eb major, op. 74

About the Weber Clarinet Concerto No. 2, from the Henle Verlag website:

Now the Concertino and the First Clarinet Concerto are about to be followed by Weber’s Second Concerto in E-flat major, edited by Norbert Gertsch. Once again, the piano reduction contrasts the original solo part with the widely known version by Carl Bärmann (both parts are separately enclosed). The accompanying preface offers a detailed explanation of the importance of both versions and how they interrelate.