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  • #: 209558
  • Price: free ($0.00) In Apple Store
  • Category: Music
  • Updated: 2010-09-28
  • Current Version: 1.1
  • 1.1
  • Size: 0.30 MB
  • Language: English
  • Seller: John Payne
  • Requirements: Compatible with iPad. Requires iOS 3.2 or later
  • © John Payne 2010
  •  Add to Favorite apps



RatioKey provides a dense selection of tones (105 over an adjustable 2-octave range), all related to the center (1/1) tone by frequency ratios composed entirely of low powers of the first five prime numbers (2, 3, 5, 7, & 11). Any two tones with frequencies related by a simple integer ratio constitute what is sometimes called a "pure" interval.

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Rated 3/5 based on 1 customer reviews.


3/5 stars

Good idea, could be better

I really like the premise. It would be cool to have simultaneous notes sounding, and/or overtone/harmonic/timbreal control over the sounds though. Maybe organize them into a piano style relationship...


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The information may be outdated (2011-04-27 02:49:06). For actual information go to iTunes

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