Digital Dream Door's 100 Greatest Jam Bands - Page 3

Digital Dream Door's 100 Greatest Jam Bands. List of the greatest jam bands of all time. A jam artist is an artist or band (usually below the mainstream) who spends large portions of their live performances through unplanned improvising and changing songs through a transition, such as jazz and bluegrass musicians. These bands generally experiment with jazz, world music, progressive bluegrass, and psychedelic rock