Original: He served concurrently as musical advisor of the Cleveland Orchestra from 1970 to 1972 , chief conductor of the BBC Symphony Orchestra from 1971 to 1975 , and music director of the New York Philharmonic from 1971 to 1977 .
Simplified: He was the chief conductor of the BBC Symphony Orchestra from 1971-1975 , the New York Philharmonic from 1971-1977 and now he is Conductor Emeritus of the Chicago Symphony Orchestra .