Orig. name was Goldsbrough Orch., founded 1948 by Arnold Goldsbrough and Lawrence Leonard to perf. baroque mus. Present name adopted 1960 when repertory was expanded to cover mus. of all periods written for ‘Mozart‐sized’ ens. Assoc. with Aldeburgh Fest. from 1961, playing in premières of Britten's A Midsummer Night's Dream, Owen Wingrave, church parables, and Cello Sym. Has also given f.ps. of works by Maw, Birtwistle, Tavener, Richard Rodney Bennett, etc. No prin. cond. before 1985, but worked closely with Britten, Leppard, Barenboim, Davis, Zukerman, and others. Jeffrey Tate appointed first prin. cond. 1985. Salzburg Fest. début 1987 (cond. Tate). Many recordings. Worldwide tours, incl. Japan, the Americas, Europe, Israel, etc.