Jam band

The term jam band describes bands, often psychedelic rock bands, whose concerts consist largely of

The term jam band describes bands, often psychedelic rock bands, whose concerts consist largely of musical improvisation. Such groups include the likes of the Grateful Dead, Blues Traveler, Phish, Hot Tuna, The Allman Brothers Band, Cream, Widespread Panic, moe., String Cheese Incident, Umphrey's McGee, and many others. The term likely derives from the improvisational and technically demanding jam sessions of jazz and bluegrass musicians.

Although usually associated with psychedelic rock, jam bands often draw on various musical traditions, including funk, progressive bluegrass, blues, country music, rock and progressive rock, folk music, world music and jazz.