Finally, when the Instrumentation Department was established at Tokyo University of the Arts, it was moved there and completed in 1953. Since then, Yasuda has been active as a jazzman in Yokohama, Yokosuka, and . Yasuda latter meet both Êtarô Ishibashi and during the his trip in Yokohama. In 1953, he formed the his own jazz band "The Four Devers" with Masahiro Ishida (saxophone), Yukio Tanizaki (bass) and Tetsuo Hino (drums) and performed in both Tokyo and Nagoya. At this time, Yasuda performed with Ishibashi's band. Later, after working in "The Five" where Ishibashi is the leader, Yasuda first apperence was in the Nagoya club "Fernando" as a member of "Happy Furinance". (Emi Itō & Yumi Itō) also appeared in this club. From this time on, his name often appeared in the "Swing Journal" advertisement. In the fall of 1957, he joined with the performance of Êtarô Ishibashi.