自然の持つエネルギー感や、世界各地の民族音楽研究の影響を反映した楽曲を創作し、演奏する新しい感性の音楽家。
八ヶ岳を間近に臨む清里に住み、創作活動、演奏活動を行っている。
日本伝統楽器、アジア伝統楽器、聲明（天台寺門聲明、真言聲明、天台聲明）、アンデス民謡、バリ民族音楽、中近東音楽、舞踏などの世界各国の民族音楽を直接体験する機会を得たことで独自の作曲法を見いだし、それらの現地の音楽家と共演。これまでに培った西洋音楽と、新たに体験した民族音楽、そして自然との融合を目指す。

Tatsuya Koumazaki Profile
He is a musician who is writing and plying music pursuing ethnic music various parts of the world with the natural energies of " Mother Earth".
He is a composer and guitarist of new and refined sensibilities.
He lives is Kiyosato facing Mt.Yatsugatake (at the middle of Japan).
He collaborates with Japanese traditional music SYOMYO (Buddhism priest chanting),Asian traditional music (Balinese), ethnic music (Andes music,the Middle and Near East music) and Butoh dance. He found out his way unique in compose after he could get chances to have experiences of ethnic music directly and he has been playing with players from the spot. He aims to make harmonize and unity with cultivated Western music,experienced ethnic music and nature.
He performed Europe (Poland,Hungary,France,Italy,England,Swiss,Germany,Burugaria), Asia ( Indonesia),America. 1997 he had his concert with his group in Budapest with the aid of The Japan Foundation. And 1999 he had his concerts with his group in Roma Cultural center and Sofia cultural palace with the aid of The Japan Foundation. 2001 he had concert with Balinese Gamelan group with the help of Japanese Club and consulate.