What was the earliest music?

Mary Channen Caldwell of the School of Arts & Sciences said there’s evidence of written music from as early as 1400 BC. “The western musical notation that is often, if misleadingly, considered ‘standard,’” she said, “is only one possible system for recording music, and can only reasonably be used to notate musical works that follow certain conventions of pitch, rhythm, harmony, etc.”

・ From Gizmodo