In 1951, Takemitsu was a founding member of the anti-academic : an artistic group established for multidisciplinary collaboration on mixed-media projects, who sought to avoid Japanese artistic tradition. The performances and works undertaken by the group introduced several contemporary Western composers to Japanese audiences. During this period he wrote "Saegirarenai Kyūsoku I" ("Uninterrupted Rest I", 1952: a piano work, without a regular rhythmic pulse or barlines); and by 1955 Takemitsu had begun to use electronic tape-recording techniques in such works as "Relief Statique" (1955) and "Vocalism A·I" (1956). Takemitsu also studied in the early 1950s with the composer Fumio Hayasaka, perhaps best known for the scores he wrote for films by Kenji Mizoguchi and Akira Kurosawa, the latter of whom Takemitsu would collaborate with decades later.