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![Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef. Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef.](https://solitaryroad.com/c1060/ole1.gif)
Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef.
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