Yonder Mountain Stringband
String Cheese Incident
Railroad Earth
[The Grateful Dead
The Waybacks
Jamgrass is loosely based on bluegrass instrumentation, and many of the bands in jamgrass use the standard bluegrass line-up, including banjo, mandolin, guitar and bass, as well as the occasional fiddle and usually drums. Some bands also use electronic keyboards and other percussion instruments.

String Cheese Incident - Outside Inside (Sci Fidelity, 2001)

The Waybacks - Devolver (Fiddling Cricket, 2000)

JamBands.com focuses on jam bands, including rock jam bands as well as jamgrass and other variations.
JamBands.ca focuses on jam bands in Canada
Sci Fidelity Records is a jam band record company started by String Cheese Incident, which is home to Umphrey's McGee, SCI and many other bands.
"Restless Wind" by the String Cheese Incident
"I Wanna Be Like You" by the Waybacks
Blending rock, jazz, folk, blues and bluegrass styles, jamgrass elongates the instrumental solos typical of jazz and bluegrass. Often, the song will take on a new melody, key signature and rhythm during the long, wandering solos, before finding its way back to a hook or chorus that reminds the audience what song they're listening to. These solos can range from standard bluegrass and rock style solos to dreamy psychadelia, and beyond.

