Mixtur-Trautonium
In 1948 Sala further developed the Trautonium into the Mixtur-Trautonium. The Mixtur-Trautonium allowed for the first time in music history the execution of sounds which had only been known in theory since the Middle Ages, but were never actually playable. Sala's invention opened the field of subharmonics, the symmetric counterpart to overtones, so that a thoroughly distinct tuning evolved.
Sala presented his new instrument to the public in 1952 and would soon receive international licenses for its circuits. That same year, Harald Genzmer delivered the score to the first Concert For Mixtur-Trautonium And Grand Orchestra.
In the 50’s Sala also built the Quartett-Trautonium.
Read more about this topic: Oskar Sala