路人皆知

pǔ tiān zhī xià yǒu yí rén de dì fang bì yǒu yīn yuè zhè shì lù rén jiē zhī de shì shí

普天之下，有彝人的地方必有音乐，这是路人皆知的事实。

As a fact being known to all on God's earth, music undoubtedly is popular in regions of residence of Yi nationality.