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What Key Is This is the little app that simply provides a quick way to check what key a piece of music is written in. Simply select your clef and slide to the number of sharps or flats. Example scales are also provided for additional information.

Features:
- Selection of four most common clefs
- Major or minor tonality
- One octave of each scale displayed
- All four minor scales shown

Easy to use

Very simple layout. Just slide for numbers of sharps or flats.

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Four clefs

All four standard clefs included

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Scales

Shows the standard scales for each key

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Life is really simple, but we insist on making it complicated.
Confucius

The privacy policy and terms and conditions for the What Key Is This app can be found here.