Klee's work has influenced composers including Argentinian Roberto García Morillo in 1943, with Tres pinturas de Paul Klee, and the American artist David Diamond in 1958, with the four-part Opus Welt von Paul Klee (World of Paul Klee).
Since 1995, the "Paul Klee-Archiv" (Paul Klee archive) of the University of Jena houses an extensive collection of works by Klee.