Miles Davis, Gill Evans, Dexter Gordon, Wes Montgomery, Martial Solal, Johnny Griffin, Charles Mingus, Gerry Mulligan, Hank Jones, Joe Lovano, Dizzy Gillespie, Arturo Sandoval, Elvin Jones, Joshua Redman, Herbie Hancock, Ron Carter, Billy Cobham, Dave Brubeck, e.s.t., Barney Kessel, Herb Ellis

John Coltrane, Dexter Gordon, Jimmy Smith, Count Basie, Joshua Redman, Benny Golson, Freddie Hubbard, Stan Getz, Michel Legrand, Sarah Vaughan, Ella Fitzgerald, The Modern Jazz Quartet, Toots Thielemans, Fred Hersch, Diane Schuur

Albert Collins, Stevie Ray Vaughan, Johnny Winter, Walter Trout, Otis Spann, Johnnie Johnson, Ana Popovic, Ronnie Earl, Matt Schofield, Muddy Waters, Clark Terry, B.B King, R.L. Burnside, J.B. Lenoir, Lonnie Mack

Joe Cocker's 'With a Little Help from My Friends' is his first album produced by Denny Cordell and released on April 23, 1969 by Regal Zonophone.

Beyoncé's 'Lemonade' is her sixth studio album featuring James Blake, Kendrick Lamar, The Weeknd and Jack White as guests and released on April 23, 2016 by Parkwood Entertainment / Columbia Records.

Pete Townshend's 'Empty Glass' is his first solo album of original material released on April 21, 1980 by Atco Records

McCoy Tynerr's 'The Real McCoy' is his seventh album recorded on April 21, 1967 with Joe Henderson, Ron Carter & Elvin Jones and released the same year by Blue Note.

Earl Hines, Don Pullen, Count Basie, Roland Hanna, Keith Jarrett, Mccoy Tyner, Chick Corea, Oscar Peterson, Wynton Kelly, Sun Ra, Thelonious Monk, Terry Riley