¿Who plays the backgound jazz music in some scenes of the flinstones tv comics?

Answer 1

There was many celebrities, but the songs by Fred Flintstone was mostly by Mel Blanc and Alan Reed.

Despite the fact that Fred's voice sound like the jazz crooner Mel Tormé, the actual voice was performed by Alan Reed: "When the Saints Go Marching In" performed by Fred Flintstone in the first season episode "Hot Lips Hannigan", and a later episode, in which Fred takes on the persona of teen idol "Hye Fye" sees him performing "Listen to the Rockin' Bird" — a rewrite of the standard "Listen to the Mockingbird", Alan Reed himself sang several tunes in his loud tone in the coming years, including "Christmas is My Favorite Time of Year" and "Dino the Dinosaur" in the series' often-replayed Christmas episode. Mel Blanc also performed a few vocals, including a version of "Old Folks at Home", while Jean Van Der Pyl and Bea Benadaret sang two versions of "The Car Hop Song," one performing as a pair of young girls auditioning for a job with Fred and Barney's new hamburger stand, and a second version in character as Wilma and Betty.

A good bunch of the original songs and most of the background music were composed by Hoyt Curtin and Ted Nichols.

Celebrities voices: Hoagy Carmichael: sang "Yabba Dabba Doo!" in the second season premiere episode, "The Hit Songwriters" (in the same episode, Fred - on one of his tone deaf days - mangles Carmichael's "Stardust").
Ann-Margret: "I Ain't Goin' to Be Your Fool No More" and the lullaby "The Littlest Lamb".
James Darren: "The Surfin' Craze", while The Beau Brummels (as "The Beau Brummelstones") performed "Laugh Laugh", a real-life hit for the group.
One of the most fondly remembered songs of the series was "The Bedrock Twitch", performed by staff voice actor Daws Butler and later performed in the first live-action Flintstones film by The B-52s (who renamed themselves the BC-52s for the occasion); presented as a parody of The Twist in the original TV series, the lyrics actually make reference to the then-current dance craze, and also include a reference to the rock and roll standard, "Rock Around the Clock". One song written for the series became a standard and not always identified as originating with the Flintstones — the seemingly endless sing-along "Happy Anniversary" which is often performed at anniversary parties. The spiritual "Open Up Your Heart (and Let the Sunshine In)".

In 1994, Rhino Records released The Flintstones: Modern Stone Age Melodies, an album containing a number of musical selections taken from the series.

The famous theme song "Meet the Flintstones" was not actually introduced until the third season (1962–1963), although early versions of the melody can be heard as background music in many episodes. (The famous "Meet the Flintstones" theme, in a much longer form, first appeared on a Flintstones record released in the early 1960s). The theme used for the first and second seasons, an instrumental called "Rise and Shine", was removed from all first and second season episodes in syndication from the 1960s through the early 1990s and replaced with the "Meet the Flintstones" opening, while a closing credits sequence taken from a later episode was substituted at the end. As a result, the closing credits for all first season episodes in syndication were incorrect for many years. New syndicated versions of the episodes in the 1990s restored the original first season credits and theme, albeit with cigarette and other advertising matter omitted. According to information provided on the DVD release of the second season, this decision was made because at the time syndicated programs were often aired out of their original broadcast order, and it was felt having the show jump between the different opening credits sequences would confuse audiences. Nonetheless, a number of later Flintstones episodes in syndication used an alternate version of the closing credits in which Pebbles and Bamm-Bamm are shown singing "Open Up Your Heart and Let the Sunshine In".

The first season of the original series, with the original opening credits, as well as "Rise and Shine" restored but not the cigarette ads, was released on DVD in March 2003; Season 2 was released in December 2004; season 3 in March 2005; Season 4 in November 2005; season 5 in March 2006; and season 6, the final season, in September 2006.

Answer 2

Check Toonopedia, they might have info on that, or they might have a link to a place that knows. They do have an article onthe Flintstones that gives info on the voice artists, episodes, etc. I don't remember all the details, so go see it yourself.

19 SEPT 07, 0450 hrs, GMT.