Fifteenth

In music, a fifteenth or double octave, abbreviated 15, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, it is two octaves. It is referred to as a fifteenth because, in the diatonic scale, there are 15 notes between them if one counts both ends (as is customary). Two octaves (based on the Italian word for eighth) do not make a sixteenth, but a fifteenth. In other contexts, the term two octaves is likely to be used.

单词	superoctave
释义	superoctave 英汉-汉英词典 n. 双八度音栓词组 \| 习惯用语您要查找的是不是： supermarket n. 超级市场 supercomputer n. 超型计算机 superlative adj. 最上的；高超的；过度的 n. 最高级的言辞；极致；完璧 supertanker n. 超大型油轮；巨大型油轮网络短语: superoctave 双八度音栓英语百科 Fifteenth In music, a fifteenth or double octave, abbreviated 15, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, it is two octaves. It is referred to as a fifteenth because, in the diatonic scale, there are 15 notes between them if one counts both ends (as is customary). Two octaves (based on the Italian word for eighth) do not make a sixteenth, but a fifteenth. In other contexts, the term two octaves is likely to be used.
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superoctave

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网络短语:

Fifteenth