[3] Toyozumi features on numerous commercially available recordings with many of the most notable Japanese and international improvising musicians including Derek Bailey, Mototeru Takagi, Misha Mengelberg, Peter Brötzmann, Keiji Haino, Otomo Yoshihide,[4] Tom Cora and Fred Van Hove.
[6] Toyozumi has been instrumental in bringing many European and American improvisers to Japan including Derek Bailey, Misha Mengelberg and Sunny Murray.
[7] In an interview with Cadence Magazine in 1988 Toyozumi makes clear the importance of his relationship with nature as an influence on his playing[1] and Clive Bell writing in The Wire in 2005 notes "his devotion to the way of Watazumido, the late shakuhachi player and Zen master, whose performances mixed martial arts and music in a bizarre cocktail of discipline and craziness".
[7] In 2009 he returned to London to feature as one of the players in Russell's improvisation festival Fete Quaqua which was recorded for broadcast by BBC Radio 3.
[8] He continues to tour widely and in the past year or so has performed in Belgium and France,[9] Chile,[10] Taiwan,[11] England,[12] Philippines[13] and Greece.