Humans can hear 20 to 20,000 Hz, so why do we only have 8 repeating notes (which only go up to 2,000 Hz) when we could make more interesting music? - Quora
![Not All Humans Can Hear This Sound. Can You? - Take the 20hz - 20000hz Audio Spectrum Test - YouTube Not All Humans Can Hear This Sound. Can You? - Take the 20hz - 20000hz Audio Spectrum Test - YouTube](https://i.ytimg.com/an/tC8rOgXYoX8/3b9107ef-8f85-410d-92d7-027bd9bc2393_mq.jpg?v=5abce730)
Not All Humans Can Hear This Sound. Can You? - Take the 20hz - 20000hz Audio Spectrum Test - YouTube
![Not All Humans Can Hear This Sound. Can You? - Take the 20hz - 20000hz Audio Spectrum Test - YouTube Not All Humans Can Hear This Sound. Can You? - Take the 20hz - 20000hz Audio Spectrum Test - YouTube](https://i.ytimg.com/vi/BdQyX2ensOM/maxresdefault.jpg)