En-harmonic Keys on the Keyboard.

Certain keys on the keyboard has what we call en-harmonic keys.

      The en-harmonic keys are made known through the existence of the black and white keys which we refer to as Flats and Sharps on the keyboard.

         Below are some examples of various en-harmonic keys on the keyboard; 

• Key C Sharp is an en- harmonic key of key D flat.
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• Key D Sharp is an en-harmonic key of key E flat.
  
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• Key F Sharp is an en-harmonic key of key G flat.
  
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• Key F Sharp is an en-harmonic key of key A flat.
  
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• Key A sharp is an en-harmonic key of key B flat.
  
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           Take Note: The names of the below keys does not exist on the keyboard; 

• key C flat.❌
  
• Key E Sharp.❌
  
• Key F flat. ❌
  
• Key B Sharp.❌