Piano Solo - Level 5 - Digital Download SKU: A0.1160206 By Gustav Adolf Merkel. By Gustav Adolf Merkel. Arranged by Lee D. Stockner. Classical. Score. 18 pages. Music Lee Inclined Guy, Inc. #760494. Published by Music Lee Inclined Guy, Inc. (A0.1160206). This arrangement of Merkel's Humoreske is designed for Occupational Octavesâ„¢ users who have completed Books 1-8 and some other supplemental material. It is a 15 page piece written in the key of A-minor with big chords and wonderful melodies!