The Tenth Planet of malevolent cyborgs that became a recurring adversary in later "Doctor Who" stories. The "tenth planet" in the title makes reference to a fictional lost planet in Earth's Solar System; at the time of production, the Solar System was generally held to consist of nine planets, prior to the redesignation of Pluto as a minor planet. "The Tenth Planet" is an incomplete "Doctor Who" serial – one of many serials that were affected by the BBC's policy of wiping archived programmes in the 1960s and 70s. Only three of the four episodes are currently held in the BBC archives; the
Suite (music) dexterity from the pianist. Arnold Schoenberg's first use of the twelve-tone technique throughout an entire work was in his Suite for Piano, op. 25. Modeled on the Baroque keyboard suite, the piece consists of six movements entitled "Präludium" (Prelude), "Gavotte", "Musette", "Intermezzo", "Menuett" (Minuet, with Trio), and "Gigue". Other famous examples of early 20th-century suites are "The Planets" by Gustav Holst, a 'Suite for Orchestra' in which each piece represents the astrological significance of one of the seven uninhabited planets then known, as well as his First Suite in E-flat and Second Suite in F for Military Band. There are