Master acoustician, Yasuhisa Toyota, talks about kickstarting his career with the Disney Concert Hall

"Our collaboration has been since 1989, and now it's long-term," Toyota says of Gehry. "With Frank, I learned many, many things." Chief among them, he says: "Flexibility." "His thinking is very free and without restrictions. His spirit and creative mind is [open]. And we were able to work together in this way," Toyota says. During the construction of Disney Hall, Toyota, ... was inspired by Gehry's design and perfected what he sees as his personal style of acoustics.