On March 19, 1918, Louis married Daisy Parker from Gretna, Louisiana. They adopted a 3-year-old boy, Clarence Armstrong, whose mother, Louis's cousin Flora, died soon after giving birth. Clarence Armstrong was mentally retarded (result of a head injury at an early age) and Louis would spend the rest of his life taking care of him. Louis's marriage to Parker failed quickly and they separated. She died shortly after the divorce.
In 1922, Armstrong joined the exodus to
Chicago, where he had been invited by his mentor, Joe "King" Oliver, to join his
Creole Jazz Band. Oliver's band was the best and most influential hot jazz band in Chicago in the early 1920s, at a time when Chicago was the center of the jazz universe. Armstrong made his first recordings, including taking some solos and breaks, while playing second cornet in Oliver's band in 1923.
Armstrong enjoyed working with Oliver, but Louis' second wife,
pianist Lil Hardin Armstrong, urged him to seek more prominent billing. Oliver and he parted amicably in 1924 and Armstrong moved to
New York City to play with the
Fletcher Henderson Orchestra, the top African–American band of the day. Armstrong switched to the trumpet to blend in better with the other musicians in his section. His influence upon Henderson's
tenor sax soloist,
Coleman Hawkins, can be judged by listening to the records made by the band during this period.
During this time, he also made many recordings on the side arranged by an old friend from New Orleans, pianist
Clarence Williams; these included small jazz band sides (some of the best pairing Armstrong with one of Armstrong's few rivals in fiery technique and ideas,
Sidney Bechet) and a series of accompaniments for
Blues singers.
Armstrong returned to Chicago in
1925 and began recording under his own name with his famous
Hot Five and
Hot Seven groups, producing hits such as "
Potato Head Blues," "
Muggles" (a reference to
marijuana, for which Armstrong had a lifelong fondness), and "
West End Blues," the music of which set the standard and the agenda for jazz for many years to come. His recordings with pianist
Earl "Fatha" Hines (most famously their 1928 "Weatherbird" duet) and Armstrong's trumpet introduction to "West End Blues" remain some of the most famous and influential improvisations in jazz history.
In the late Thirties Armstrong began to experience problems with his fingers and lips, which were aggravated by his unorthodox playing style. As a result he branched out, developing his vocal style and making his first theatrical appearances.
Armstrong returned to New York, in 1929, where he played in the pit orchestra of the successful musical
Hot Chocolate, an all-black revue written by
Andy Razaf and pianist/composer
Fats Waller. He also made a cameo appaearance as a vocalist, regularly stealing the show with his rendition of "
Ain't Misbehavin'," his version of the song becoming his biggest selling record to date.
Armstrong had considerable success with vocal recordings, including versions of famous songs composed by his old friend
Hoagy Carmichael. His 1930s recordings took full advantage of the new RCA
ribbon microphone, introduced in 1931, which imparted a characteristic warmth to vocals and immediately became an intrinsic part of the '
crooning' sound of artists like
Bing Crosby.
Armstrong's famous interpretation of Hoagy Carmichael's "
Stardust" became one of the most successful versions of this song ever recorded, showcasing Armstrong's unique vocal sound and style, and his innovative approach to singing songs that had already become standards.
Armstrong's radical re-working of
Sidney Arodin and Carmichael's "
Lazy River" (recorded in 1931) encapsulated many features of his groundbreaking approach to melody and phrasing. The song begins with a brief trumpet solo, then the main melody is stated by sobbing horns, which are memorably punctuated by Armstrong's growling interjections at the end of each bar: "Yeah! ..."Uh-huh" ..."Sure" ... "Way down, way down".
In the first verse, he ignores the notated melody entirely, and sings as if playing a trumpet solo, pitching most of the first line on a single note and using strongly syncopated phrasing. In the second stanza he breaks into an almost fully improvised melody, which then evolves into a classic passage of Armstrong "
scat singing."
As with his trumpet playing, Armstrong's vocal innovations served as a foundation stone for the art of jazz vocal interpretation. The uniquely gritty colouration of his voice became a musical
archetype that was much imitated and endlessly impersonated. His scat singing style was enriched by his matchless experience as a trumpet soloist. His resonant, velvety lower-register tone and bubbling cadences on sides such as "Lazy River" exerted a huge influence on younger white singers such as
Bing Crosby.
Armstrong moved to
Los Angeles in 1930, then toured
Europe. After spending many years on the road, he settled permanently in
Queens,
New York in 1943 in contentment with his fourth wife, Lucille. Although subject to the vicissitudes of
Tin Pan Alley and the
gangster-ridden music business, as well as anti-black prejudice, he continued to develop his playing.
During the subsequent thirty years, Armstrong played more than three hundred gigs a year. Bookings for big bands tapered off during the 1940s due to changes in public tastes: ballrooms closed, and there was competition from
television and from other types of music becoming more popular than big band music. It became impossible under such circumstances to support and finance a 16-piece touring band.