Ampersand

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The ampersand, or Ampersand's comma, is the interval of 34171875/33554432 (monzo: |-25 7 6>), of size 31.567 cents. It is the amount by which six diatonic semitones fall short of a fifth; that is, (3/2)/(16/15)^6. The 5-limit temperament tempering it out gives the 5-limit version of miracle temperament. The Ampersand comma was named after Paul Rapoport's cat, Ampersand.