| | - Jack Bruce
- Jack Bruce Band
- Jack DeJohnette
- Jack DeJohnette, Larry Grenadier, John Medeski & John Scofield
- Jack Magnet
- Jackiem Joyner
- Jackson Conti
- Jacky Terrasson
- Jaco Pastorius
- Jaco Pastorius & Brian Melvin
- Jaco Pastorius Big Band
- Jaco Pastorius, Pat Metheny, Bruce Ditmas & Paul Bley
- Jacob Collier
- Jacob Mann Big Band
- Jacob Webb
- Jacob Young
- Jacques Kuba Seguin
- Jacques Loussier
- Jaga Jazzist
- Jah Wobble's Solaris
- Jahari Massamba Unit
- Jaimoe's Jasssz Band
- Jake Shimabukuro
- Jakob Bro
- Jakob Bro, Arve Henriksen, Jorge Rossy
- Jakob Bro, Thomas Morgan & Jon Christensen
- Jamaaladeen Tacuma
- Jamael Dean
- James 'PJ' Spraggins
- James Blood Ulmer
- James Francies
- James Gibbs III
- James Greene
- James Mason
- Jamie Saft Quartet
- Jamie Saft Trio
- Jamie Saft, Steve Swallow & Bobby Previte
- Jan Akkerman
- Jan Akkerman & Kaz Lux
- Jan Garbarek
- Jan Garbarek, Keith Jarrett, Palle Danielsson & Jon Christensen
- Jan Hammer Group
- Jane Getter
- Jane Getter Premonition
- Jane Monheit
- Jarez
- Jason Lindner
- Jaubi
- Jay Thomas with the Oliver Groenewald Newnet
- Jazmin Ghent
- Jazz Funk Soul
- Jazz Holdouts
- Jazz Sabbath
- JD73's ElecTrio
| - Jean-Luc Ponty
- Jeanette Harris
- Jeff Ballard Trio
- Jeff Beck
- Jeff Berlin
- Jeff Edwins
- Jeff Golub
- Jeff Golub with Brian Auger
- Jeff Kashiwa
- Jeff Lorber
- Jeff Lorber Fusion
- Jeff Palmer
- Jeff Parker
- Jeff Ryan
- Jennifer Wharton
- Jeremy Cunningham
- Jerome Sabbagh
- Jerry Goodman & Jan Hammer
- Jessica Pina
- Jessy J
- Jethro Tull
- Jim Adkins
- Jim Allchin
- Jim Beard & Jon Herington
- Jim Brickman
- Jim Hall & Pat Metheny
- Jim Pepper
- Jim Peterik & Marc Scherer
- Jim Peterik's Lifeforce
- Jim Richter
- Jim Snidero
- Jimi Tenor
- Jimmy Haslip, Scott Kinsey & Gergo Borlai
- Jimmy Herring
- Jimmy Sommers
- Jing Chi
- Jiro Inagaki & His Soul Media
- JLT
- Joachim Kuhn
- Jocelyn Gould
- Joe Armon-Jones
- Joe Bergamini
- Joe Chambers
- Joe Farrell
- Joe Henderson
- Joe Henderson & Alice Coltrane
- Joe Kienemann Trio
- Joe Plass
- Joe Sample
- Joe Sample and the Soul Committee
- Joe Zawinul
- Joel Fairstein
- Joel Harrison
- Joel Hoekstra
| - Joern and the Michaels
- Joey Sommerville
- Johan Randen
- Johannes Wallmann
- John Abercrombie
- John Abercrombie Quartet
- John Abercrombie, Dave Holland and Jack DeJohnette
- John Carroll Kirby
- John E. Lawrence
- John Klemmer
- John Macaluso & Union Radio
- John Martyn
- John Mayall
- John McLaughlin
- John McLaughlin and the 4th Dimension
- John McLaughlin and the Mahavishnu Orchestra
- John McLaughlin with The One Truth Band
- John McLaughlin, Dave Holland, John Surman, Stu Martin, Karl Berger
- John Medeski's Mad Skillet
- John Novello
- John Patitucci
- John Scofield
- John Scofield & Pat Metheny
- John Scofield, Bill Stewart & Steve Swallow
- John Zorn
- Johnny Borrell & Zazou
- Johnny Britt
- Jon Balke
- Jon Balke & Amina Alaoui
- Jon Hassell
- Jonas Hellborg
- Jonas Hellborg Group
- Jonathan Butler
- Jonathan Cain
- Jonathan Fritzen
- Jonathan Wolff
- Joni Mitchell
- Jordan Pettay
- Josh Johnson
- Josh Lawrence
- Joshua Redman
- Joshua Redman & Brad Mehldau
- Joshua Redman Quartet
- Journey
- Joyce Cooling
- Julian Lage
- Julian Lage & Chris Eldridge
- Julian Vaughn
- Julie Driscoll, Brian Auger & The Trinity
- Junipher Greene
- Justin Lee Schultz
- The Jeff Lorber Fusion
- The Joe Craven Trio
- The JT Project
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