The Boston Philharmonic’s first concert of the new season is a sonic spectacular featuring two masterpieces of classical music: Richard Strauss’s Also Sprach Zarathustra and Gustav Holst’s The Planets. Famously used as the opening music for Stanley Kubrick’s film 2001: A Space Odyssey, Also Sprach Zarathustra is as electrifying to modern audiences as it was when it premiered in 1896. Holst’s popular The Planets takes you on a musical journey across the solar system. So influential is this century-old orchestral suite, it’s been the basis of songs by numerous rock bands, among them Led Zeppelin and Black Sabbath. Hear these two masterworks, conducted by Benjamin Zander, at Boston Symphony Hall.