score was performed by the Vince Guaraldi Quartet on January 5, 11, 23 and 30, 1974, at Wally Heider Studios, featuring Guaraldi (piano, electric piano, electric harpsichord, electric guitar and whistling), Tom Harrell (trumpet), Seward McCain (electric bass), Eliot Zigmund (drums, January 11) and Mike Clark (drums, all other dates). The song "Mystery Theme" was reworked in an uptempo version for It's the Easter Beagle, Charlie Brown, which was broadcast two months later. "Little Birdie" (instrumental version) "Mystery Theme" "It's a Mystery, Charlie Brown" (version 1) "Mystery Theme" (reprise) "Sassy Sally" (slow variation of "It's a Mystery, Charlie Brown") "Little Birdie" (instrumental version, reprise) "It's a Mystery, Charlie Brown" (version 1 reprise) "Mystery Theme" (second reprise) "Cops and Robbers" "It's a Mystery, Charlie Brown" (version 1 reprise) "Mystery Theme" (third reprise) "Cops and Robbers" (reprise) "It's a Mystery, Charlie Brown" (version 2; school version) "Sally's Blues" "Mystery Interlude" (variation of "It's a Mystery, Charlie Brown") "Joe Cool" (instrumental "whistling" version with brass) "It's a Mystery, Charlie Brown" (version 1 reprise) "Sassy Sally" (slow variation of "It's a Mystery, Charlie Brown") "Mystery Theme" (fourth reprise, end credits) No official soundtrack for It's a Mystery, Charlie Brown was released. However, recording session master tapes for seven 1970s-era Peanuts television specials scored by Guaraldi were discovered by his son, David, in the mid-2000s. The songs "Little Birdie" (instrumental version), "It's a Mystery, Charlie Brown" (third reprise, school version), "Cops and Robbers," "Sally's Blues" and "Joe Cool" (instrumental "whistling" version with brass) were released in 2008 on the compilation album, Vince Guaraldi and the Lost Cues from the Charlie Brown Television Specials, Volume 2. A live version of "Cops and Robbers" was also recorded by Guaraldi on February 6, 1974, for a radio performance released on Live on the Air. Credits Created and Written by: Charles M. Schulz Story by: Jeffrey Moss, Jon Stone, Ray Sipherd, Norman Stiles, Joseph A. Bailey, Jerry Juhl Directed by: Phil Roman Produced by: Bill Melendez Executive Producer: Lee Mendelson A Lee Mendelson-Bill Melendez Production Music Composed and Performed by: Vince Guaraldi Music Supervision: John Scott Trotter Home media This special was released on DVD for the first time, in remastered form as part of the DVD box set, Peanuts 1970's Collection, Volume One. Before that, it was released on RCA's SelectaVision CED format in 1983, and on VHS by Kartes Video Communications in 1987, and by Paramount on