#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

No statement uses or specializes #low_pitch; click here to add one.