Depends upon one's definition of "Music." In the far near & East, there are numerous examples of written Music from several thousand years back, but it is not the modern version of notation. The Music was composed & written down, then taught to students of particular Musical Instruments. Much of this Music is extremely complicated, & one could spend a lifetime studying Classical Music (of whatever culture) from a Master Musician. There have also been a great many works or art found in which Musicians were playing for various courts/royalty for various occasions. I have a copy of an ancient Persian miniature hanging in the Smithsonian in which Musicians are playing for the entertainment a prince. This is considered by Musicologists to be modern, as it is dated AD.