When Toshimaru Nakamura (no-input mixing board) was organizing concerts for Jason Kahn, who was to visit Japan in October of 1998, Tetuzi Akiyama (guitar, electronics) set up a gig for Kahn, himself, Nakamura and Taku Sugimoto (guitar) at one of Akiyama's regular performance venues, Bar Aoyama. The gig on October 15 at this tiny club in Shibuya, Tokyo, turned out to be the premiere concert of the monthly series The Improvisation Meeting at Bar Aoyama. Each session in this series featured Akiyama, Nakamura, Sugimoto and a guest artist.
In November of '99, the series was renamed The Experimental Meeting at Bar Aoyama. Then, in August 2000, it was moved to the gallery Off Site in Yoyogi, Tokyo, and renamed Meeting at Off Site. Sugimoto retired from the series after the February 2001 concert. Akiyama and Nakamura continued it, performing with a guest artist at each session. In January of 2003, they changed its format: each concert consisted entirely of a guest musician's solo performance. To allow the audience to fully appreciate the guests' music, Nakamura and Akiyama did not participate in the sessions.
The solo performance series continued for one year. Akiyama and Nakamura ended the Meeting at Off Site series in December 2003.