Motohiko Hamase biography
Motohiko Hamase (1952-) Quit Keio University. Since 1976, he has been playing with Jazz groups of such leaders as Hidehumi Toki, Isao Suzuki, Mikio Masuda, Kazumasa Akiyama, Yasuaki Shimizu and George Ohtsuka. He has joined many recordings as acoustic and electric bassist. As a player he established a new style using fretless bass. He formed an experimental unit "Lager" in 1982 and continued grouping for new format of music until 1985, when he began his solo activities and released five solo albums. He established a theory on bass line in the "Bass Line Book "(1987), a book which concerns musical theory. He also presented a completely new tonality theory for improvisations and composition by establishing a theory concerning the development of blue notes in "Blue notes and Tonality"(1992).