Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Yasuhisa Toyota is an acoustician who has been chief acoustician for over 50 projects worldwide, including the Walt Disney Concert Hall, Suntory Hall in Tokyo, the Bard College Performing Arts Center in New York, and the Kauffman Center for the Performing Arts in Kansas City. He is the company director and U.S. Representative of Nagata Acoustics of Tokyo. Toyota is a native of Japan and graduate of the Kyushu Institute of Design. As of late 2006, his works in progress included the Shenzhen Cultural Center Concert Hall for the People''s Republic of China, Finland''s Helsinki Music Center, the Danish Radio Concert Hall in Copenhagen and the renovation of the Sydney Opera House Concert Hall.