Jazz: From New Orleans Streets to a Global Musical Language

Jazz is a musical genre that originated among African American communities in New Orleans, Louisiana, in the decades around 1900. According to the U.S. National Park Service, the city's unusual mix of French and Spanish colonial history, a large population of African descent, and a formally trained 'Creole of color' community created the specific conditions in which the style emerged.

Where it began: Congo Square and brass bands

The National Park Service traces early roots to Congo Square, where enslaved people gathered by the mid-18th century and preserved West African drumming and dance traditions. By the 1880s and 1890s, African American brass marching bands and Mardi Gras Indian processions were blending those traditions with European-style instrumentation and the syncopated piano style known as ragtime.

Cornet player Charles 'Buddy' Bolden, active in New Orleans between roughly 1895 and 1900, is credited by many early jazz musicians as the first to play in a distinctly new style, incorporating improvised blues phrasing and faster tempos, the Park Service notes. Segregation laws of the 1890s had the unintended effect of uniting uptown improvising musicians with formally trained Creole players, further blending the two traditions into the New Orleans jazz sound of cornet, clarinet and trombone playing in collective improvisation.

From New Orleans to a national craze

Musicians carried the style out of New Orleans in the 1900s and 1910s: pianist Jelly Roll Morton began touring outside the city around 1907, and bandleader Freddie Keppard's Original Creole Orchestra toured nationally starting in 1912. The Original Dixieland Jazz Band, led by Nick LaRocca, made what the National Park Service identifies as the first commercial jazz recording, cut in New York in 1917 — a recording that became an unexpected national hit.

According to the research reference service EBSCO, Louis Armstrong is credited with pioneering the improvised solo 'break' within group performances, helping shift jazz from collective polyphony toward the soloist-centered style still common today.

Swing, bebop and the styles that followed

Jazz continued to evolve through distinct eras over the following decades, moving from the big dance bands of the swing era to the more improvisation-focused styles that came after, according to EBSCO's research summary of the genre's history.

EBSCO's overview notes that bebop emerged in the 1940s as a more technically demanding alternative to swing, led by saxophonist Charlie Parker and trumpeter Dizzy Gillespie, before Miles Davis helped popularize a smoother 'cool jazz' sound later that decade and into the 1950s. His 1959 album Kind of Blue is described as one of the genre's most influential recordings. Free jazz musicians subsequently stripped away fixed harmonic structure in favor of open improvisation, while jazz fusion from the late 1960s onward added rock- and funk-derived rhythms and electric instruments.

A genre that became a global art form

Jazz spread beyond the United States largely through radio and recordings from the 1920s onward, according to EBSCO, reaching audiences in Europe. Guitarist Django Reinhardt, blending American jazz with Romani musical traditions in France, is cited as the source of the first major European jazz style, known as Gypsy jazz.

That global reach is now formally recognized by UNESCO, whose General Conference designated April 30 as International Jazz Day in 2011. The day is coordinated by the Herbie Hancock Institute of Jazz and, according to UNESCO, is intended to highlight jazz's role in intercultural dialogue, diversity and freedom of expression. The 2025 edition, chaired by pianist Herbie Hancock, was hosted in Abu Dhabi and, according to UNESCO, reached more than 2 billion people across over 190 countries through concerts, education programs and media coverage.

The 2025 International Jazz Day concert in Abu Dhabi featured musicians from the United Arab Emirates, the United States, China, Morocco, the United Kingdom, France, Canada, Australia, Panama, Iraq and India, according to UNESCO, alongside programming that paired jazz with traditional Middle Eastern instruments such as the oud and qanoon — an example of the kind of cross-cultural fusion that has characterized the genre since its early decades in New Orleans.