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Music, Piano keyboard, Octave, Pitch class, Major diatonic scale, Major chord, Chromatic scale, Tempered scale, Staff, Clef.
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This incredible piano has 108 keys and a nine-octave range – and it sounds immense - Classic FM
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Piano Keyboard Keys By Octaves Melodystave Stock Vector (Royalty Free) 1242144574 | Shutterstock
