Music is an art form that uses sound organized in time. It typically involves elements like melody, harmony, rhythm, and timbre. Music can be vocal or instrumental, or a combination of both. It serves various purposes, such as entertainment, emotional expression, cultural transmission, and social connection. Music genres range widely, from classical and jazz to rock, pop, hip-hop, and electronic. It plays a significant role in human culture and can influence mood, convey messages, and bring people together.