Tanglewood summer since, except for the interval 1942–45 when the Trustees canceled the concerts and summer school due to World War II. The Shed was renovated in 1959 with acoustic designs by BBN Technologies. In 1986 the BSO acquired the adjacent Highwood estate, increasing the property area by about 40%. Seiji Ozawa Hall (1994) was built on this newly expanded property. Leonard Bernstein conducted the Boston Symphony at Tanglewood in August 1990 in what proved to be his very last concert. Deutsche Grammophon released a live recording of the concert on CD. In addition to hosting world-renowned programs of classical, jazz,
Symphony for Organ and Orchestra (Copland) she arranged for him to write a major symphonic work for organ and orchestra to be premiered by herself on organ and the New York Symphony Orchestra under Walter Damrosch followed by the Boston Symphony Orchestra (BSO) under Serge Koussevitzky. He had come to be known around Paris as "that talented young American composer," and at a meeting at Koussevitzky's house with Sergei Prokofiev and Boulanger, the conductor remarked ""You" vill [sic] write an organ concerto, Mademoiselle Boulanger vill [sic] "play" it and "I" vill [sic] conduct it!" Despite his apprehensiveness about his preparedness to write such a large work