October 19: Haco (vocal, electronics) and Michiyo Yagi (koto, voice) in Nantes, France
July 20: Haco and Michiyo Yagi at Big Apple in Kobe
July 28: Haco and Michiyo Yagi at the Festival MIMI in Marseilles, France
May 27: Haco and Michiyo Yagi at the Le Weekend festival in Stirling, Scotland
May 28: Haco and Michiyo Yagi at the MLC festival in London, UK
September 7: Haco and Michiyo Yagi, and guest haruna ito (sampler, feedback, electronics, vocal) at Big Apple in Kobe
September 8: Haco and Michiyo Yagi, and guest haruna ito (sampler, feedback, electronics, vocal) at Big Apple in Kobe
October 2: Haco and Michiyo Yagi, and guest haruna ito (sampler, feedback, electronics, vocal) at Big Apple in Kobe
October 12: Haco and Michiyo Yagi at the Festival City of Women in Ljubljana, Slovenia
October 13: Haco and Michiyo Yagi in Brusseles, Belgium.
November 19: Haco and Michiyo Yagi at the Festival Beyond Innocence in Kobe
April 16: Haco, Sachiko M, and Michiyo Yagi at Big Apple in Kobe
May 1: Haco, Sachiko M, and Michiyo Yagi at "in F" in Oizumigakuen, Tokyo
May 21: Haco, Sachiko M, and Michiyo Yagi at the Festival International de Musique Actuelle de Victoriaville, Canada
May 24: Haco, Sachiko M, and Michiyo Yagi at Musique Action, Nancy, France
November 7: Haco, Sachiko M, and Michiyo Yagi at Music Unlimited '99, Wels, Austria
December 7: Haco, Sachiko M, and Michiyo Yagi at Bin Spark in Nishiogikubo, Tokyo
April 27: Haco, Sachiko M, and Michiyo Yagi at Bears in Namba, Osaka (Amoebic Festa, Vol. 3)
March 27: Debut concert - Haco, Sachiko M, and Michiyo Yagi at La Mama in Shibuya, Tokyo
October 13: Haco, Sachiko M, and Michiyo Yagi at Bears in Namba, Osaka
October 30: HOAHIO duo (Haco and Sachiko M) at Barton Hall in Shukugawa
November 6: Haco, Sachiko M, and Michiyo Yagi at Silver Elephant in Kichijoji, Tokyo
November 14: HOAHIO duo (Haco and Sachiko M) at The Spitz in London (London Jazz Festival)
November 22: HOAHIO duo (Haco and Sachiko M) at Kulturbrauerei in Berlin
November 25: HOAHIO duo (Haco and Sachiko M) at Chelsea in Vienna
November 27: HOAHIO duo (Haco and Sachiko M) at Rote Fabrik in Zürich
December 3: HOAHIO duo (Haco and Sachiko M) at Taverna Ai Poggi in Lecco, Italy