
Viola Organista op. 1 (2012)
Viola Organista op. 2 (2021)
In 2021, Sławomir Zubrzycki built a second instrument, which is the result of further research and concert experience from 2013-2019. Some solutions have been optimized, the overall length has changed, and the control over the sound gives new possibilities of expression and interpretation.


Viola Organista op. 3 (2023)
The next instrument was built in 2023. It differs from the previous ones in the construction of the bow, which is in the form of an endless belt, not wheels. Thanks to this solution, the arrangement of the strings is parallel to the surface of the soundboard, similar to harpsichords or pianos. The sound characteristics are also different compared to the two previous instruments. Both types of bow were sketched by Leonardo da Vinci. The decoration of the instrument is based on patterns of the Florentine school from the 16th century.
Viola Organista op. 4 (2025)


Opus 5. Lyra Coeli de Toledo (2026)
A new incarnation of Raymundo Truchado’s 400-year-old instrument, known as the Geigenwerk, which is housed at the Musical Instruments Museum in Brussels. Its proper name is the Lyra coeli de Toledo. It is a keyboard and bowed instrument with a distinctive, expressive Spanish sound. It has been commissioned by the Cathedral of Toledo to celebrate the 800th anniversary of its consecration, which falls in 2026. On this occasion, interesting facts were revealed about the original instrument, which was built in the Dominican convent in Toledo by the monk Raymundo Truchado in 1625, and three years later, it became the property of the Cathedral. It served there for 180 years, primarily as a liturgical instrument used on Good Friday. The Cathedral’s library preserves works originally written for the Lyra coeli. At the beginning of the 19th century, the instrument was sold and, after many years, ended up in Brussels, where it is now on display, unused.