#low_pitch__lowpitch__low_frequency__lowfrequency  a pitch that is perceived as below other pitches
  exclusion:  high_pitch
  supertype:  pitch.sound  the property of sound that varies with variation in the frequency of vibration
  subtype:  deepness  a low pitch that is loud and voluminous
  subtype:  alto  the pitch range of the lowest female voice
  subtype:  bass  the lowest part of the musical range

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