What does the term "jam session" mean in jazz culture?

The term "jam session" in jazz culture refers to an informal gathering of musicians who come together to play music without the constraints of a formal performance. This setting allows musicians to experiment, improvise, and collaborate creatively, often playing standards or original compositions. The relaxed atmosphere fosters spontaneity and encourages musicians to showcase their skills in a supportive environment. Unlike a formal performance, where rehearsed pieces are executed for an audience, a jam session emphasizes communal creativity and musical interaction. It is an essential part of jazz culture, allowing musicians to learn from one another and develop their craft in a social context.