Disco dance music has a strong beat, usually 4/4 beats, and each beat is a strong beat, which remains unchanged from beginning to end; The speed is about 120 beats per minute; Its tune is short and its lyrics are simple and repetitive. In fact, any piece of music can be turned into a disco as long as the speed is adjusted and the strong and weak beats are changed. At first, disco only played pop songs and rock music suitable for dancing, such as Sol music in Motown. Later, specialized disco music gradually appeared.
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