And every musical culture around the world-- and I've talked with ethnomusicologists about this particular point-- every musical culture around the world, Chinese, Japanese, Indonesian, Indian, African whatever, they all use this phenomenon of octave duplication in their music-- octave duplication in the music.

世界各地的每一种音乐文化,我曾经和一些民族音乐学家谈论过这一点,世界各地的每一种音乐文化,中国的,日本的,印尼的,印度的,或是非洲的,大家都有这种现象,即在自己的音乐里运用,这种重复八度

耶鲁公开课 - 聆听音乐课程节选

History is... in Harlem is dominantly where the black culture, African history

哈莱姆区的历史是……这里以黑人文化、非洲历史为主导，

对哈莱姆好奇吗？ - SpeakingMax英语口语达人