The piccolo clarinet in D is the clarinet for which Richard Strauss wrote the main motive of his famous tone poem Till Eulenspiegel, and it also notably appears in the symphonies of Mahler and Stravinsky's Le sacre du printemps. The D clarinet is still in fairly common use today, but the majority of modern clarinetists perform parts written for the D clarinet on the much more common E-flat clarinet. For this arrangement I wished to allow the clarinetist to perform Molter's first concerto on the E-flat clarinet in the same key as it was written for the D clarinet. Therefore, I have transposed the piece from the original key of A to B-flat, which keeps the written solo part in the key of G. It is my sincere hope that this practicality will allow many more clarinetists to enjoy performing this historically significant piece of clarinet repertoire.