Octave. 2/1 frequency ratio. (C5/C4)   
		
		
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Octave. 2/1 frequency ratio.
Perfect fifth. 3/2 frequency ratio.
Perfect fourth. 4/3 frequency ratio.
Major sixth. 5/3 frequency ratio.
Major third. 5/4 frequency ratio.
Minor sixth. 8/5 frequency ratio.
Minor third. 6/5 frequency ratio.
  Time (sec)  

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