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![How to use Octaves - Justin Guitar](https://www.iarticlesnet.com/pub/img/site/s_17.jpeg)
How to use Octaves - Justin Guitar
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日期:2024-07-14
An octave is an interval between (and including) two notes, one having twice or
half the frequency vibration of the other. In simple terms this means that octaves ......看更多