Johann Melchoir Molter wrote his six clarinet concertos for the clarinet in D. Today’s clarinetist rarely owns a D clarinet; the scarcity of the instrument therefore hinders the performance of Molter’s concertos.

Quality arrangements of the Molter’s Clarinet Concerto no. 1 in A Major exist to accommodate the original key of the piece. These arrangements transpose the clarinet part from G to F# to facilitate the use of the common Eb clarinet, therefore satisfying the concerto’s tonal integrity, but not Molter’s intent.

To preserve Molter’s original intent, keeping the clarinet part in an easily accessible key, an arrangement of the concerto for the Eb Clarinet would necessitate the transposition of the orchestral parts from A to Bb. This paper will detail the process of transposing the orchestra’s parts; including decisions regarding tessitura, phrasing marks, and articulations that are unclear in the original score