国立音楽大学
In the 1980s, Yamashita formed the "New York Trio" with bassist Cecil McBee and drummer Pheeroan akLaff. In 1994 he was invited to perform at the 50th anniversary concert of jazz label Verve, held at Carnegie Hall. He provided the music for films such as "Inflatable Sex Doll of the Wastelands" and "Dr. Akagi". He has also led a big band "that combined swing music with free jazz". He has been a visiting professor of music at Senzoku Gakuen College of Music, Nagoya University of Arts, and his alma mater, Kunitachi College of Music, in addition to publishing work on improvisation and music.