claim: Mamata Banerjee has been Chief Minister of Western Union since 2011,
evidence: The term `` partition '' is also French for the sheet music of a transcription .. sheet music. sheet music. transcription. Transcription ( music ). music. music. In music using the twelve-tone technique , derivation is the construction of a row through segments .. music. music. twelve-tone technique. twelve-tone technique. A derived row is a tone row whose entirety of twelve tones is constructed from a segment or portion of the whole , the generator .. tone row. tone row. Anton Webern often used derived rows in his pieces .. Anton Webern. Anton Webern. A partition is a segment created from a set through partitioning .