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The Hypoionian mode is a Renaissance church mode that served as a lower-range form of the Ionian mode. Described by Henricus Glareanus in his treatise Dodecachordon (1547), it was one of four modes added to the existing system of eight church modes to accommodate the growing use of major and minor scales and the increasing importance of harmony. The Hypoionian mode, along with the Ionian mode, had C as its finalis, the tone on which a piece in that mode ends. In modern terms, the Hypoionian mode is represented as a scale from G to G on the white keys of a piano, with E as its tenor and C as its final.12

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  1. Ionian mode
  2. Hypoionian mode
  3. mode

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