Gábor GalavicsPrincipal Clarinetist at Hungarian State Opera House
"I am playing Gleichweit-made mouthpieces since 2006. These mouthpieces changed, developed my playing a lot in soundquality, articulation and stability of intonation. Every
1-2 years I visit Johannes in Vienna, and it is always an amaizing experience, how precisely he can make a mouthpiece to my personal taste and request. As he is an outstanding clarinetist he helps me a lot when listening to me while testing new pieces. I appreciate that he always try to be better and better and make developements on material, settings of his machine etc. I highly recommend Gleichweit-Mundstücke for every clarinet player. I think Johannes is a real master, an artist in mouthpiece making, and also a very nice person."