Original: He was also music director of the New York Philharmonic and the Houston Symphony, and conducted many other orchestras including the London Symphony Orchestra, the London Philharmonic Orchestra, the Berlin Philharmonic, and the Vienna Philharmonic.
Simplified: He was conductor of other great orchestras including the New York Philharmonic and the Houston Symphony, and also conducted orchestras including the London Symphony Orchestra, the London Philharmonic Orchestra, the Berlin Philharmonic, and the Vienna Philharmonic.