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Octave
01
八度, 八音阶
the interval between the first and the last notes in eight diatonic degrees
What is an "octave"?
An octave is the interval between one musical pitch and another pitch that is either double or half its frequency. In simple terms, it is the distance between two notes with the same name but at different pitches. For example, if you play a C note, the next C note higher or lower is an octave away. The sound of these notes is perceived as very similar, though one is higher or lower than the other. Octaves are fundamental in music for creating harmony and structure, and they help in organizing the musical scale.
Example
The pianist played a scale that spanned a full octave.
钢琴家演奏了一个跨越八度的音阶。
He tuned his guitar to ensure each string was in the correct octave.
他调整了吉他，以确保每根弦都在正确的八度。
02
八日节, 八天节
a feast day and the seven days following it
03
八行诗, 八行韵
a rhythmic group of eight lines of verse
