The fifth degree of the scale after the tonic is the next most important and it's called the dominant note.

主音后面的区域中五度,是下一个重要的概念,它被称为属音

耶鲁公开课 - 聆听音乐课程节选

After the Greeks laid out their fifths and fourths and whole steps, they had these little leftovers.

当希腊人安排好,五度音程,四度音程和全音级后,他们还有一些剩余

耶鲁公开课 - 聆听音乐课程节选

Then the next pitch on the trumpet is actually an interval of a fifth.

然后下一个音高在小号那里,实际上是一个五度音程

耶鲁公开课 - 聆听音乐课程节选

Timpani or as it's sometimes called a kettledrum, and it was playing two different pitches, actually sort of playing this pitch and this pitch, the octave and then the fifth.

定音鼓,或者有时称作半球形铜鼓,它正演奏两个不同的音高,实际上在演奏这个音高和另外一个音高,八度音阶和这个五度

耶鲁公开课 - 聆听音乐课程节选

So, they had the ratio of two to one, which gave them the octave, and three to two, which gave them the fifth, and four to three, which gave them the fourth.

他们发现,八度音程中,呈现的是二比一的比例,而五度音程中呈现三比二的比例,在四度音程中则呈现四比三的比例

耶鲁公开课 - 聆听音乐课程节选

They filled in the octave up above and then they filled in the fifth and then they filled in the fourth and then they came down a whole step and then they went up a fourth from that whole step and then up a fourth from that, and they were filling in in this fashion.

他们填写了八度音程,然后填写了五度音程,又填写了四度音程,然后下降一个全音级,又从那个全音级上升四度音程,然后再上升四度音程,他们就是照这样填写

耶鲁公开课 - 聆听音乐课程节选