Reform Boehm system

Schmidt made changes to the Boehm clarinet based on scientific and mathematical principles.

The new instrument had rollers between two little-finger keys in the right hand, and a modified bore that produced a different sound character.

[3] A Reform Boehm clarinet looks similar to an original Boehm clarinet, although some brands or models exhibit some of these differences: Initially Reform Boehm clarinets were built only by Fritz Wurlitzer, and later by his son Herbert Wurlitzer,[7] followed by other manufacturers in Germany (Leitner & Kraus,[8] Wolfgang Dietz,[9] Harald Hüyng[10]) and Japan (Yamaha).

Instead of Reform Boehm clarinets "it has recently become increasingly evident that more and more professional clarinetists, in collaboration with instrument makers, are developing individual instruments constructed for the needs of the musicians, based either on the German or the French system.

"[12][13] Working with the basic ideas of Fritz Wurlitzer, the Canadian manufacturer Stephen Fox has developed clarinets in B♭ and A, wanting "to blend the focus and cleanness of the German sound with the brilliance and projection of the French clarinet, with superior intonation."