A "jam band" is a musical group known for improvisational performances, often blending various genres like rock, jazz, and blues. These bands typically extend their songs with long instrumental sections, allowing musicians to showcase their creativity and spontaneity. The focus is on live performances, where the energy of the audience can influence the direction of the music. Many jam bands have a dedicated fan base that follows them from show to show, creating a unique community experience. Notable examples of jam bands include The Grateful Dead, Phish, and Widespread Panic, each known for their distinctive sound and engaging live shows.