Gertrud Grunow (8 July 1870 – 11 June 1944) was a German musician and educationalist who formulated theories on the relationships between sound, colour and movement and was a specialist in vocal pedagogy.
She began exploring the relationships between sound, colour and movement as early as 1914 and gave her first lectures on her theories in Berlin in 1919.
She also explored the correlation between form and colour, as did her Bauhaus colleagues Johannes Itten, Wassily Kandinsky and Paul Klee.
[4] As part of her work Grunow prepared evaluations of the students that recommended which of the Bauhaus workshops they should be assigned to following the preliminary course, thus exerting a powerful influence over their future artistic direction.
[4][5] Grunow, along with Itten, Lothar Schreyer and others, was regarded as one of the Bauhaus 'esoterics', as opposed to the more technically-minded school director Walter Gropius.
[7] Grunow collaborated in research with the psychologist Heinz Werner, and was an associate of the philosopher Ernst Cassirer, the art historian Gertrud Bing and Hilla von Rebay, who was an abstract artist and the first director of the Solomon R. Guggenheim Museum in New York.