 Jenco, a company better known for mallet percussion, made timpani tuned in this fashion.In the early 20th century, Hans Schnellar, the timpanist of the Vienna Philharmonic, developed a tuning mechanism in which the bowl is moved via a handle that connects to the base and the head remains stationary.These instruments are referred to as "Viennese timpani" ("Wiener Pauken") or "Schnellar timpani".