Creating music seems to be one of the hallmarks of our humanity.
Bone flutes have been found in European caves that date from 42,000 B.C.E. The flute played the modern diatonic scale. Also, caves have been shown to have the best acoustical spots marked--band over here; )
Excavations at Ur unearthed harps dating from as early as 2,750 B.C.E. A cuneiform tablet found at Nippur gives instructions on how to play a harp song that is made up of harmonies of thirds on the diatonic scale.
Songs and instruments have been found in the digs of all ancient cultures including: the Indus River valley culture, Mesopotamia, Egyptian, Minoan, and Chinese.