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The modern piano keyboard is based on the interval patterns of the diatonic scale. Any sequence of seven successive white keys plays a diatonic scale.
The modern piano keyboard is based on the interval patterns of the diatonic scale. Any sequence of seven successive white keys plays a diatonic scale.
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Diagram showing relations between epogdoon, diatessaron, diapente, and diapason
Diagram showing relations between epogdoon, diatessaron, diapente, and diapason
Detail of Raphael's School of Athens showing Pythagoras with epogdoon diagram
Detail of Raphael's School of Athens showing Pythagoras with epogdoon diagram