Clarinet Solo - Level 3 - Digital Download SKU: A0.793258 By Hank Williams Jr. By Harry Brooks and Thomas Fats Waller. Arranged by Christopher Kalstad. Country. Individual part. 1 pages. Christopher Kalstad #6402143. Published by Christopher Kalstad (A0.793258). Fats Waller's classic tune Ain't Misbehavin' is now arranged for solo clarinet. Players at the intermediate level and up will enjoy playing this attractive jazzy arrangement of an unforgettable tune.