Louisiana blues is a genre of blues

Blues

Blues is the name given to both a musical form and a music genre that originated in African-American communities of primarily the "Deep South" of the United States at the end of the 19th century from spirituals, work songs, field hollers, shouts and chants, and rhymed simple narrative ballads...

 music that developed in the period after World War II in the state of Louisiana. It is generally divided into two major sub-genres, with the jazz

Jazz

Jazz is a musical style that originated at the beginning of the 20th century in African American communities in the Southern United States. It was born out of a mix of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th...

-influenced New Orleans blues

New Orleans blues

New Orleans rhythm and blues refers to a type of R&B music from the U.S. city of New Orleans, Louisiana, characterized by extensive use of piano and horn sections, complex syncopated "second line" rhythms, and lyrics that reflect New Orleans life....

 based around the city and the slower tempo swamp blues

Swamp blues

Swamp blues, sometimes the Excello sound, is a sub-genre of blues music and a variation of Louisiana blues that developed around Baton Rouge in the 1950s and which reached a peak of popularity in the 1960s. It generally has a slow tempo and incorporates influences from other genres of music,...

 incorporating influences from zydeco

Zydeco

Zydeco is a form of uniquely American roots or folk music. It evolved in southwest Louisiana in the early 19th century from forms of "la la" Creole music...

 and Cajun music

Cajun music

Cajun music, an emblematic music of Louisiana, is rooted in the ballads of the French-speaking Acadians of Canada. Cajun music is often mentioned in tandem with the Creole-based, Cajun-influenced zydeco form, both of Acadiana origin...

 from around Baton Rouge. Major artists in the New Orleans tradition include Professor Longhair

Professor Longhair

Professor Longhair was a New Orleans blues singer and pianist...

 and Guitar Slim

Guitar Slim

Eddie Jones , better known as Guitar Slim, was a New Orleans blues guitarist, from the 1940s and 1950s, best known for the million-selling song, produced by Johnny Vincent at Specialty Records, "The Things That I Used to Do"...

 and for swamp blues Slim Harpo

Slim Harpo

Slim Harpo was an American blues musician. He was known as a master of the blues harmonica; the name "Slim Harpo" was derived from "harp," the popular nickname for the harmonica in blues circles.-Early life:...

 and Lightnin' Slim

Lightnin' Slim

Lightnin' Slim was an African-American Louisiana blues musician, who recorded for Excello Records and played in a style similar to its other Louisiana artists.-Career:...

. Both genres peaked in popularity in the 1960s and were covered by a number of rock artists. Interest declined in the later 1960s but there have been occasional revivals since the 1970s.

New Orleans blues

The blues that developed in the 1940s and 1950s in and around the city of New Orleans was strongly influenced by jazz and incorporated Caribbean influences, it is dominated by piano and saxophone but has also produced major guitar bluesmen. Major figures in the genre include Professor Longhair

Professor Longhair

Professor Longhair was a New Orleans blues singer and pianist...

 and Guitar Slim

Guitar Slim

Eddie Jones , better known as Guitar Slim, was a New Orleans blues guitarist, from the 1940s and 1950s, best known for the million-selling song, produced by Johnny Vincent at Specialty Records, "The Things That I Used to Do"...

, who both produced major regional, national R&B chart and even mainstream hits.

Swamp blues

Swamp blues developed around Baton Rouge in the 1950s and which reached a peak of popularity in the 1960s. It generally has a slow tempo and incorporates influences from other genres of music, particularly the regional styles of zydeco

Zydeco

Zydeco is a form of uniquely American roots or folk music. It evolved in southwest Louisiana in the early 19th century from forms of "la la" Creole music...

 and Cajun music

Cajun music

Cajun music, an emblematic music of Louisiana, is rooted in the ballads of the French-speaking Acadians of Canada. Cajun music is often mentioned in tandem with the Creole-based, Cajun-influenced zydeco form, both of Acadiana origin...

. Its most successful proponents included Slim Harpo

Slim Harpo

Slim Harpo was an American blues musician. He was known as a master of the blues harmonica; the name "Slim Harpo" was derived from "harp," the popular nickname for the harmonica in blues circles.-Early life:...

 and Lightnin' Slim

Lightnin' Slim

Lightnin' Slim was an African-American Louisiana blues musician, who recorded for Excello Records and played in a style similar to its other Louisiana artists.-Career:...

, who enjoyed a number of rhythm and blues

Rhythm and blues

Rhythm and blues, often abbreviated to R&B, is a genre of popular African American music that originated in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a...

 and national hits and whose work was frequently covered by bands of the British Invasion

British Invasion

The British Invasion is a term used to describe the large number of rock and roll, beat, rock, and pop performers from the United Kingdom who became popular in the United States during the time period from 1964 through 1966.- Background :...

.