Leonhard Rank

Studio for violin making in Cologne

A warm welcome to my website.

Historical string instruments

In my workshop you will find an exceptionally wide range of services, fully in the subject of stringed instruments. Thus, on the one hand, I deal with the elaborate restoration and repair of the instruments and, on the other hand, with the application and development of the most modern methods of analysis and examination for documentation.


Restoration / Repair

The work is all done by myself
and with the utmost care.


For sale in my workshop are mainly
antique string instruments that have
either been restored and furnished
by me or are traded on commission.

Condition reports

Detailed documentation and
condition assessment of historical
valuable string instruments.

Sound adjustment

The instrument must be ideally adjusted
to enable the most carefree and
good-sounding music-making possible.


For documentation purposes, I create
professional high-resolution photos.

Analysis methods / Research

For the analysis of historical string instruments
I use the latest research methods.

About me

I would like to give you a brief overview of my journey to my centrally located workshop in Cologne.

The exchange makes it

Constant discourse is the basis of this profession.

So it is especially nice to have a colleague sitting next to you every day and eagerly exchanging thoughts and ideas! Johannes Loescher is a colleague I hold in high esteem and is the specialist in our workshop for “early music” (historically informed practice), among other things. He enjoys international recognition for his expertise, restoration and new construction of historically furnished string instruments that are as true to the original as possible.


I am very happy to be contacted by you. As I am often busy with projects that require a great deal of quiet and concentration, I would be very grateful if you could arrange an appointment before visiting my workshop.