Final answer:
The oldest playable instruments discovered in China were tuned to the pentatonic scale.
Explanation:
The oldest playable instruments discovered in China were tuned to the pentatonic scale.
The pentatonic scale is a musical scale with five notes per octave that is commonly used in various musical traditions worldwide. In Chinese music, instruments such as the guzheng and pipa often utilize the pentatonic scale. The use of pentatonic scales in Chinese music reflects a long-standing cultural tradition and influence on music composition.
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