People think it’s magic, but it’s just experience

John K. Becker, Chief Restorer Bein & Fushi


Violin making expertise


My vision

As a leading expert in sound adjustment in the Cologne area, I ensure that musicians and amateurs can play instruments with a convincing sound. To this end, I offer a range of high-quality instruments, primarily German and French, which offer above-average sound quality in their price range. My maintenance and repair service is characterized by respect for the work of other luthiers, traditional high-quality craftsmanship, price transparency, fair prices and adherence to deadlines.

My career

Porträt for Frank Lemke - Atelier für Geigenbau Köln
Frank Lemke - Atelier für Geigenbau Köln

My search for a beautiful sound began at a young age with playing the cello. I later took viola lessons with Justyna Sliwa from the renowned Asasello Quartet. This intensive training gave me a better understanding of the demands ambitious musicians place on the sound and playability of their instrument.


I acquired basic practical and theoretical knowledge in string instrument making, repair and restoration at the Staatliche Berufsfachschule für Musikinstrumentenbau in Mittenwald.

Mittenwald: Fundamentals of violin making
Mittenwald: Fundamentals of violin making

During my ten years in the workshops of Thomas Schiegnitz of the Musikinstrumenten-Museum-Berlin and Michael Becker, Chicago, former employee of Bein & Fushi and president of the American Federation of Violin and Bow Makers, I was able to deepen my skills in the following areas:

  • restoration
  • maintenance of historical and modern instruments
  • new construction
  • sound optimisation.

I also gained valuable experience in the repair and maintenance of modern and historical bows at Alfredo Clemente's bow making workshop in Cologne.

Berlin: Maintenance of historical master instruments
Berlin: Maintenance of historical master instruments
Chicago: New construction, sound adjustment of orchestra and soloist instruments
Chicago: New construction, sound adjustment of orchestra and soloist instruments

Köln: An der Linde 15
Köln: An der Linde 15

Since 2014, I have been using the expertise I have acquired in my studio in the immediate vicinity of the Kölner Musikhochschule and the Kölner Philharmonie to help professional musicians and amateurs find customised solutions for their individual wishes.