A jam session is an informal gathering of musicians who come together to play music without a set plan or rehearsal. These sessions often encourage creativity and spontaneity, allowing musicians to experiment with different styles and ideas. Participants can include a variety of instruments, such as guitars, drums, and keyboards, and they often play popular songs or create original compositions on the spot. Jam sessions can take place in various settings, including homes, studios, or public venues like bars and music clubs. They provide an opportunity for musicians to collaborate, share their skills, and connect with others who share a passion for music.