 In 1987, he was appointed Assistant Conductor of the Los Angeles Philharmonic by Music Director André Previn; he was promoted to Associate Conductor in 1990 and held that position for two years.During his tenure with the orchestra, he conducted subscription concerts, an acclaimed family concert series, "Green Umbrella" New Music Group concerts and community concerts, as well as regular programs at the Hollywood Bowl.In the fall of 1987, Miller replaced Previn on only 36-hours notice during a week of regular Philharmonic subscription concerts, earning glowing reviews.