After walking away from the six-party talks, North Korea tested its second nuclear device.

VOA: standard.2009.12.08

The second rhythmic device that we have to be aware of in music we frequently encounter is this concept of the triplet.

音乐中第二个需要知道的节奏符号,就是我们经常遇到的三连音

耶鲁公开课 - 聆听音乐课程节选