In 1950, Barber formed the New Orleans Jazz Band, a non-professional group of up to eight musicians, including Korner on guitar and Barber on
double bass, to play both trad jazz and blues tunes. He had trained as an
actuary, but decided to leave his job in an insurance office in 1951, and the following year became a professional musician. Barber and clarinetist
Monty Sunshine formed a band in late 1952, with trumpeter
Pat Halcox among others, began playing in London clubs, and accepted an offer to play in Denmark in early 1953. Simultaneously, it was found that Halcox would be unable to travel but that
Ken Colyer, who had been visiting
New Orleans, was available. Colyer joined the band, which then took the name Ken Colyer's Jazzmen. The group also included Donegan, Jim Bray (bass), Ron Bowden (drums) and Barber on trombone. In April 1953 the band made its debut in
Copenhagen, Denmark. There
Chris Albertson recorded several sides for the new Danish
Storyville label, including some featuring only Sunshine (clarinet), Donegan (banjo) and Barber (bass) as the Monty Sunshine Trio. The bands played
Dixieland jazz, and later
ragtime,
swing,
blues and
R&B. Pat Halcox returned on trumpet in 1954 when Colyer moved on after musical and personal differences with both Barber and Donegan, and the band became "The Chris Barber Band". The Barber band recorded several
In Concert LPs during the 1950s, regarded by critic
Richie Unterberger as "captur[ing] the early Barber band in its prime.... [T]here's a certain crispness and liveliness to both the acoustics and the performances that make this in some ways preferable to their rather starchier studio recordings of the same era." The short documentary film ''
Momma Don't Allow'', made in 1956, features the Chris Barber Band live with the Irish blues singer
Ottilie Patterson in a north London trad jazz club. It captures the emerging 'youth culture' of that period. Barber married Patterson in 1959. In 1959, the band's October 1956 recording of
Sidney Bechet's "
Petite Fleur", a clarinet solo by Monty Sunshine with Dick Smith on bass, Ron Bowden on drums and Dick Bishop on guitar, spent 24 weeks in the
UK Singles Chart, making it to No. 3 and selling over one million copies, and was awarded a
gold disc. After 1959, Barber toured the United States several times (where "Petite Fleur" charted at No. 5). ==1960s==