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,
Pittsburgh Symphony Orchestra the 2003–2004 season after which he began acting as director of the Bavarian Radio Symphony Orchestra in Munich. Also, in 1995, the orchestra welcomed Marvin Hamlisch as its first principal pops conductor. Composer of more than 40 motion picture scores and the Pulitzer Prize-winning Broadway show "A Chorus Line", Hamlisch previously appeared as guest conductor of symphony orchestras around the world. With three Oscars, four Grammys, a Tony Award and three Golden Globe Awards to his credit, Hamlisch eagerly began exploring new avenues of music-making with the Pittsburgh Symphony Orchestra. In January 2004, the Pittsburgh Symphony Orchestra with conductor Gilbert