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Sesquialtera

From Wikipedia, the free encyclopedia

Sesquialtera ('one and a half') may refer to:

  • Sesquialterum in mathematics, the ratio 3:2, a superparticular ratio
  • Sesquialtera or the equivalent Greek term hemiola, three in the time of two as variously used in music theory:
  • Sesquialtera (organ stop), combining mutation ranks at 223' and 135', i.e. both 3:2 and 5:4 pitch ratios
  • Sesquialtera (moth), a genus of moth in the family Geometridae