Jazz in Britain is usually said to have begun with the British tour of the Original Dixieland Jazz Band in 1919. That stated, British popular music aficionados in the 1920s generally preferred the terms 'hot' or 'straight' dance music to the term 'jazz'. Jazz in Britain also faced a similar difficulty to Brazilian jazz and French jazz, namely it tended to be seen by figures of authority as a bad influence, but in Britain the concern that jazz was from the United States appears to have been less important than in France or Brazil. Instead those who objected to it did so more because they deemed it 'riotous' or unnerving. One of the earliest popular jazz dance bands was that of Fred Elizalde, who broadcast on the BBC from 1926 to 1929. By the early 1930s music journalism in Britain, notably through the Melody Maker, had created an appreciation of the importance of the leading American jazz soloists and was beginning to recognise the improvising talents of some local musicians. During the 1930s most British jazz musicians made their living in dance bands of various kinds. Jazz became more important, and more separate as its own genre. Louis Armstrong played residencies in London and Glasgow in 1932, followed in subsequent years by the Duke Ellington Orchestra and Coleman Hawkins. But local jazz culture was limited to London where: 'jazz was played after hours in a couple of restaurants that encouraged musicians to come in and jam for drinks'. The groups of Nat Gonella and Spike Hughes became notable within Britain early in the decade; Hughes was even invited to New York to arrange, compose and lead what, in effect, was Benny Carter's Orchestra of the time. Carter himself worked in London for the BBC in 1936. West Indian swing band leader Ken 'Snakehips' Johnson and Leslie Thompson, a Jamaican trumpeter, influenced jazz in Britain, with the band fronted by Johnson – 'The Emperors of Jazz' – being the first large Black band of note. Johnson went on to form one of the top swing bands in the country, known as 'The West Indian Orchestra', which became the resident band at fashionable London venue Café de Paris, and it was here that Johnson was among those killed by a German bomb during the Blitz in the early days of the war. World War II led to an increase in bands to entertain the troops and these bands began to refer to themselves as 'jazz' groups more often. The period also saw an increased interest in American musicians who also toured in military bands. The future leading alto-saxophonist Art Pepper was among the visiting American musicians at this time. This all increased an interest in jazz which continued after the war. In 1948 a group of young musicians including John Dankworth and Ronnie Scott, focused on the Club Eleven in London, began a movement toward 'modern jazz' or Bebop. Significant instrumentalists in this early movement were trumpeter-pianist Denis Rose, pianist Tommy Pollard, saxophonist Don Rendell, and drummers Tony Kinsey and Laurie Morgan. A movement in an opposite direction was revivalism, which became popular in the 1950s and was represented by musicians like George Webb, Humphrey Lyttelton and Ken Colyer, although Lyttelton gradually became more catholic in his approach. Trad jazz, a variant, briefly entered the pop charts later. At this point both streams tended to emulate Americans, whether it be Charlie Parker for Beboppers or Joe 'King' Oliver and other New Orleans musicians for traditionalists, rather than try to create a uniquely British form of jazz. During the 1950s mass emigration into the UK, brought an influx of players from the Caribbean such as Joe Harriott and Harold McNair, though some, among them Dizzy Reece, found the shortage of genuine jazz work frustrating - dance music remained popular - and migrated to the United States. British born players too, including George Shearing, active on the London scene since before the war, and Victor Feldman also chose to move across the Atlantic to develop their careers. Several new jazz clubs were established in London in the 1950s, including the Flamingo Club. A domestic musicians' union ban on visiting American jazz musicians, initiated in the mid-thirties (Fats Waller had to visit the UK as a 'variety' act in 1938) was gradually relaxed from the mid-fifties onwards. This benefited the local scene as the often erratic availability of American records had meant that, unlike the rest of Europe, British jazz aficionados had long been unfamiliar with the most recent jazz developments in the music's country of origin. Ronnie Scott's Jazz Club in London, co-founded in 1959 by one of the earliest native proponents of bebop, was able to benefit from an exchange arrangement with the American Federation of Musicians (AFM), allowing regular visits from leading American players from 1961. A key musician, pianist Stan Tracey, developed his skills and gained regular employment from backing the visiting musicians. In the 1960s and 1970s British jazz began to have more varied influences, from Africa and the Caribbean. The influx of musicians from the Caribbean brought to the UK shores excellent musicians, including the Jamaican saxophonist Joe Harriott. Firmly established as an outstanding bebop soloist before his arrival in the UK he went on to claim a leading spot in British jazz. Harriott was an important voice and innovator whose constant search for new ways to express his music was to lead to collaborations with fellow Jamaican Alpha Boys School alumnus trumpeter Dizzy Reece and St Vincent trumpeter Shake Keane. Harriott turned to what he termed 'abstract' or 'free form' music. He had been toying with some loose free form ideas since the mid-1950s, but finally settled upon his conception in 1959, after a protracted spell in hospital with tuberculosis gave him time to think things over. At first he struggled to recruit other like-minded musicians to his vision. Indeed, two of his core band members, Harry South and Hank Shaw, left when these ideas surfaced. He finally settled on a line-up of Keane (trumpet, flugelhorn), Pat Smythe (piano), Coleridge Goode (bass) and Phil Seamen (drums). Les Condon temporarily replaced Keane on trumpet in 1961, while Seamen left permanently the same year, his place taken by the return of the quintet's previous drummer, Bobby Orr.The subsequent groundbreaking album Free Form was released in early 1960, historically prior to celebrated American saxophonist Ornette Coleman's own experimental Free Jazz album.Harriott's free form music is often compared to Ornette Coleman's roughly contemporary breakthrough in the US, but even cursory listening reveals deep divisions between their conceptions of 'free jazz'. Indeed, there were several distinctive models of early free jazz, from Cecil Taylor to Sun Ra. Harriott's was another of these. His method demanded more complete group improvisation than displayed in Coleman's music, and often featured no particular soloist. Instead of the steady pulse of Ornette's drummer and bass player, Harriott's model demanded constant dialogue between musicians which created an ever-shifting soundscape. Tempo, key and meter always free to alter in this music, and often did so. The presence of Bill Evans-inspired pianist Pat Smythe also gave the band a completely different texture to Coleman's, which by then had dispensed with the need for a pianist. Harriott's own playing style underwent some changes during this period, dispensing with orthodox bebop lines in favour of more angular, cut up phrasing. What remained however, was his lyricism, searing tone and sense of attack. Harriott was always keen to communicate his ideas, be it on stage, in interviews or album liner notes. In 1962, he wrote in the liner notes for his Abstract album, 'of the various components comprising jazz today - constant time signatures, a steady four-four tempo, themes and predictable harmonic variations, fixed division of the chorus by bar lines and so on, we aim to retain at least one in each piece. But we may well, if the mood seems to us to demand it, dispense with all the others'.