In 1940, the Berkshire Music Center (now the Tanglewood Music Center) began its operations. By 1941, the Theatre-Concert Hall, the Chamber Music Hall, and several small studios were finished, and the festival was attracting nearly 100,000 visitors annually.
The 1986 addition of the adjacent Highwood estate expanded Tanglewood's public grounds by 40 percent. The newly acquired property became the site for a new concert hall to replace the outmoded Theatre-Concert Hall and for improved Tanglewood Music Center facilities. Inaugurated on July 7, 1994, Seiji Ozawa Hall provides a new venue for TMC concerts, and for varied recital and chamber music concerts.
Today Tanglewood annually draws over 350,000 visitors. Each season offers not only a vast quantity of music, but also a vast range of musical forms and styles, all of it presented with a regard for artistic excellence that makes the festival unique.