Music has been a part of human culture for a very long time. Evidence of our caveman ancestors shows that they fashioned crude flutes from bears femurs. By 7,000 BC, the first melodic flutes emerged in China, and by playing notes one after the other, melodies were created. Playing two notes at the same time created harmony, and Pythagoras discovered the relationship between maths and harmony.
Other scientists like Aristotle, Leonardo da Vinci, and Galileo also studied sound and music. Music spread from blacksmith forges to medieval monasteries and later to private houses, where Renaissance nobles danced to the latest sounds. By Beethoven's heyday, performances had grown from quartets and quintets to full-blown orchestras. The introduction of technology, like the phonograph, single-handedly kick-started the music industry.
Soon musical records were being sold, and the first radio broadcast aired on Christmas Eve, 1906. Today, we have various devices like the gramophone, jukebox, and MP3 player that bring music to our ears. However, technology does not control the quality of the music produced.