“So all Israel brought up the ark of the covenant of the Lord with shouting, to the sound of the horn, trumpets, and cymbals, and made loud music on harps and lyres.”
1 Chronicles 15:28 ESV
μουσική is the Greek word from which music is derived, meaning “art of the muses”.
Put in simple terms, music is organized sounds. There are many classifications describing the sounds and categorizing them. What is noise to some is music to the ears for others. Different cultures prefer their own music styles and it is often used as “universal language”.
For me music is a way to express feelings, which evokes various feelings from others. Obviously it is a powerful language as the music industry is huge worldwide.