© FEURICH – High Speed Kamm Action

Our patent (Udo KAMM & FEURICH) is now available as a retrofit set. It markedly improves the repetition and the playing feel of every upright piano action. You can install it in all new or used upright pianos.

We have proven the effectiveness of the patent in a research project with the MDW (University of Music and Performing Arts Vienna) both in the research lab with an mechanical finger, and through an empirical study with professors and pianists.