#percussionist  a musician who plays percussion instruments
  supertype:  #instrumentalist__musician__player  someone who plays a musical instrument (as a profession)
  subtype:  #drummer  someone who plays a drum
     subtype:  #tympanist__timpanist  a person who plays the kettledrums
     instance:  #Ringo_Starr__Starr__Richard_Starkey
  subtype:  #xylophonist  someone who plays a xylophone

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