It appears that basic wind, stringed and percussion instruments were used across cultures dating back to the Neolithic, if not earlier. Is this evidence of cultural drift as populations migrated across the globe or did similar musical instruments spontaneously develop independently?
The Australian first nation people developed wind instruments (the didgeridoo) and various percussion instruments spontaneously. While they would be considered primitive in comparison to European and Asian instruments evolution it does support the idea that it was a spontaneous development rather than a cultural drift.