Konrad "Conny" Plank (1938-1987) was a pivotal German music producer and sound engineer known for his innovative work in the genres of rock, electronic, and experimental music. He played a crucial role in shaping the sound of various influential artists, particularly during the 1970s and 1980s. Plank is best known for his collaborations with bands such as Kraftwerk, Neu!, and Harmonia, as well as artists like Eurythmics and Ultravox. His production techniques often involved the use of unconventional recording methods and the integration of electronic instruments, which helped to define the sound of progressive rock and electronic music. Notable works include producing Kraftwerk’s seminal albums like "Trans-Europe Express" and "The Man-Machine," as well as Neu!'s self-titled debut and Harmonia's "Musik von Harmonia." Plank's influence extended beyond his productions; he was instrumental in the development of the "Krautrock" movement, which blended rock with avant-garde and electronic elements. His legacy continues to resonate, as contemporary artists frequently cite his innovative approach to sound and production as a significant influence on modern music. Plank’s work laid the groundwork for the future of electronic and experimental music, marking him as a key figure in 20th-century music history.