A meeting at Nordwestdeutscher Rundfunk (NWDR) in Cologne helped secure approval for creating a dedicated electronic-music studio. This step mattered because it set up one of the first long-term broadcast-studio bases for electronic composition, including later work by Karlheinz Stockhausen.
Early studio equipment and pieces were publicly demonstrated at a new-music festival event in Cologne. This helped establish the studio as a working production facility, where composers could experiment with tape, oscillators, filters, and other tools that were rare outside broadcasting institutions.
Stockhausen composed Studie I in the NWDR electronic studio using controlled sine tones rather than recordings of real-world sounds. The piece became an early example of “Elektronische Musik” aiming for precise control of pitch, duration, loudness, and timbre (tone color).
Stockhausen followed with Studie II, another studio-made electronic work built from basic electronic sound sources and organized with serial methods (systematic ordering of parameters). It became widely noted as the first published score of electronic music, supporting study and repeatability beyond a single tape.
Both Studie I and Studie II were premiered in Cologne in the WDR/NWDR concert series Musik der Zeit. This concert helped demonstrate that the studio could produce finished, concert-presentable works—not just technical tests.
In 1955–56, Stockhausen created Gesang der Jünglinge at the WDR studio, combining a boy’s sung/spoken voice with electronically generated sound on tape. The work mattered because it showed a convincing way to blend human voice and electronics, narrowing the gap between purely electronic sound and recorded “concrete” sound.
Stockhausen started work that led to Kontakte, exploring how sounds could shift between noise and pitch and how movement could be shaped through four-channel space (quadraphonic projection). This marked a transition from short, tightly controlled “studies” to larger works that treated timbre and space as major musical elements.
The version of Kontakte for piano, percussion, and four-track tape premiered in Cologne, with Stockhausen handling sound projection. This premiere was important because it made “contacts” between live instruments and electronic tape a central idea, pushing electronic music toward live performance practice rather than studio-only playback.
A tape-only version of Kontakte also entered concert circulation soon after, as a self-sufficient electronic piece for loudspeaker projection. Having both versions (tape alone and tape with instruments) helped establish flexible performance formats for electronic works in concert life.
After Herbert Eimert’s retirement, Stockhausen officially succeeded him as director of the WDR Studio for Electronic Music. This leadership change mattered because Stockhausen could now shape both the studio’s artistic priorities and its technical development, aligning the facility with his expanding ideas about form, space, and live electronics.
Stockhausen wrote Mixtur, mixing orchestral sound with live electronic processing using microphones, sine-wave generators, and ring modulators (devices that combine signals to create new frequencies). The piece was a major step toward live electronic music, where electronics shape sound in real time rather than only on fixed tape.
Working in NHK’s electronic music studio in Tokyo, Stockhausen created Telemusik, using electronic processing and recordings of music from multiple world traditions. This showed how studio practice developed in Cologne could travel internationally and connect electronic techniques to a broader range of source materials.
Stockhausen created the quadraphonic tape work Hymnen, built from transformations of many national anthems. The work mattered because it expanded electronic composition into a large-scale, multi-part “documentary-like” collage, using studio editing and spatial projection as core musical tools.
The first performance of Hymnen took place in Cologne in the WDR series Musik der Zeit, using the WDR electronic studio’s quadraphonic setup and optional live performers. This premiere served as a capstone for Stockhausen’s 1951–1970 studio era: by the late 1960s, the Cologne approach had grown from sine-tone “studies” into ambitious, public, large-format works built for space, tape, and performance.
Karlheinz Stockhausen's Electronic Works and Studios (1951–1970)