San Francisco’s annual roots music festival Hardly Strictly Bluegrass will take place from September 30-October 2 at the Speedway Meadow in Golden Gate Park. As in years past, the festival—which is hosted by San Francisco venture capitalist and bluegrass enthusiast Warren Hellman—will be completely free. This year’s lineup is incredibly diverse, including: Punch Brothers featuring Chris Thile, Dark Star Orchestra, M. Ward, Robert Plant & the Band of Joy, The Low Anthem, Charlie Musselwhite, Hot Buttered Rum, Del McCoury Band with Preservation Hall Jazz Band, Emmylou Harris, Bela Fleck, Zakir Hussain & Edgar Meyer, Chris Isaak, Patty Griffin, Elbow, A.A. Bondy, Patti Griffin, Broken Social Scene, Buddy Miller, Steve Earle, Woods, Greensky Bluegrass, John Prine, Kris Kristofferson, Merle Haggard, The Flatlanders, The Band of Heathens, Justin Townes Earle, Buckethead, Jessica Lea Mayfield, Ricky Skaggs, The Jayhawks, Bright Eyes, Dr. John & the Lower 911, Gillian Welch, Ollabelle, The Felice Brothers, The Mother Hips, Abigail Washburn, Ralph Stanley & the Clinch Mountain Boys and The Blind Boys of Alabama, among many others.

Here’s a look at the festival’s current lineup

Punch Brothers featuring Chris Thile
Dark Star Orchestra
Kieran Kane
Kevin Welch & Fats Kaplin
Bill Orcutt
Broken Social Scene
The Flatlanders featuring Joe Ely, Jimmie Dale Gilmore & Butch Hancock
The Band of Heathens
Buddy Miller
Bob Mould
A.A. Bondy
Nell Robinson & Jim Nunally & Their All-Star Band
Kurt Vile & the Violators
M. Ward
Dry Branch Fire Squad
Patty Griffin
Elbow
The Wronglers with Jimmie Dale Gilmore
Guy Clark & Verlon Thompson
Steve Earle and the Dukes (and Duchesses) featuring Allison Moorer
The Belle Brigade
Bela Fleck, Zakir Hussain & Edgar Meyer
Greensky Bluegrass
Chris Isaak
Irma Thomas
Otis Clay with special guest Chick Rodgers
Wendy Bird
John Prine
Justin Townes Earle
AllofaSudden
Buckethead
River Whyless
DeVotchKa
Emmylou Harris
Ricky Skaggs
Cass McCombs
Gomez
Seldom Scene
Blame Sally
Jason Isbell & the 400 Unit
Over the Rhine
Robyn Hitchcock
Bright Eyes
Dr. John & the Lower 911
Gillian Welch
Ollabelle
Fitz & the Tantrums
Joe Purdy
The Del McCoury Band & The Preservation Hall Jazz Band
Ryan Bingham & the Dead Horses
The Civil Wars
Simon Joyner
Dive Bar Dukes
Alison Brown Quartet
Conspiracy of Beards
Bill Kirchen
Jessica Lea Mayfield
Robert Plant & the Band of Joy
Charlie Musselwhite
Hot Buttered Rum
The Jayhawks
MC Hammer (Thursday Children’s Program)
South Memphis String Band
Woods
Frank Fairfield
The Blind Boys of Alabama
The Devil Makes Three
Thurston Moore
The Low Anthem
Robert Earl Keen
The Swanson Family Band
Earl Scruggs
The Felice Brothers
Those Darlins
Jolie Holland
Southern Culture on the Skids
Mekons
Moonalice
David Bromberg Quartet
Seamus Kennedy
Jonathan Wilson
The Mother Hips
Abigail Washburn
Ralph Stanley & the Clinch Mountain Boys
Laurie Lewis & the Right Hands
Reckless Kelly
Kris Kristofferson
Merle Haggard