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Karlheinz Stockhausen’s Mantra (1970) is a work for two pianos, two sine-wave generators, and two ring modulators. This piece represents a synthesis or “sublation“ of the earlier serial method of composition and the emerging post-serial methodology, with its surrealistic or collage tendencies, and its post-modern anachronistic flair. Mantra is based on a thirteen-note series, beginning and ending with A natural. This series is quite complex, expanding from intervals as precise as a minor second, to a simple
