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  • Bellows failureBellows failure
  • Valve adjustmentValve adjustment
  • Homomorphic MetaphoneHomomorphic Metaphone
  • Harmony main slotHarmony main slot
  • Total pitch changeTotal pitch change
  • Starting frame baseStarting frame base
  • Shell plate lapShell plate lap
  • Variable tone moving slideVariable tone moving slide
  • Air tightness testAir tightness test
  • Bass transmission componentsBass transmission components
  • Sound slot faultSound slot fault
  • Keyboard case bodyKeyboard case body
  • Phonological combinationPhonological combination
  • Spindle eyeletSpindle eyelet