Joseph Nathan Oliver (December 19, 1881 – April 10, 1938) better known as King Oliver or Joe Oliver, was an American jazz cornet player and bandleader. He was particularly recognized for his playing style and his pioneering use of mutes in jazz. Also a notable composer, he wrote many tunes still played today including "Dippermouth Blues", "Sweet Like This", "Canal Street Blues", and "Doctor Jazz". He was the mentor and teacher of Louis Armstrong. His influence was such that Armstrong claimed, "if it had not been for Joe Oliver, Jazz would not be what it is today. 　　Joseph Nathan Oliver was born in Aben, Louisiana, near Donaldsonville in Ascension Parish, and moved to New Orleans in his youth. He first studied the trombone, then changed to cornet.[2] From 1908 to 1917 Oliver played cornet in New Orleans brass bands and dance bands, and also in the city's red-light district (which came to be known as "Storyville"). A band he co-led with trombonist Kid Ory was considered to be New Orleans' hottest and best in the late 1910s. Oliver achieved great popularity in New Orleans across economic and racial lines, and was in demand for music jobs from rough working-class black dance halls to white society debutante parties. 　　According to an interview at Tulane University's Hogan Jazz Archive with Oliver's widow Estella, a fight broke out at a dance where Oliver was playing, and the police arrested him, his band, and the fighters. This, coupled with the closure of "The District" (Storyville) caused Oliver to leave the Jim Crow South. He, his wife, and their daughter Ruby left New Orleans for Chicago, Illinois in early 1918. 　　Oliver found musical work in Chicago with colleagues from New Orleans such as clarinetist Lawrence Duhé, bassist Bill Johnson, trombonist Roy Palmer, and drummer Paul Barbarin.[3] He became leader of Duhé's band, playing at a number of Chicago clubs. In the summer of 1921 he took a group to the West Coast, playing engagements in San Francisco and Oakland, California. 　　In 1922 Oliver and his band returned to Chicago, where they began performing as King Oliver and his Creole Jazz Band at the Royal Gardens cabaret (later renamed the Lincoln Gardens). In addition to Oliver on cornet, the personnel included his protégé Louis Armstrong on second cornet, Baby Dodds on drums, Johnny Dodds on clarinet, Lil Hardin (later Armstrong's wife) on piano, Honoré Dutrey on trombone, and William Manuel Johnson on double bass. Recordings made by this group in 1923 for Gennett, Okeh, Paramount, and Columbia Records demonstrated the serious artistry of the New Orleans style of collective improvisation or Dixieland, and brought it to the attention of a much wider audience. 　　In the mid-1920s Oliver, following the popular trend of the time, enlarged his band to nine musicians (as King Oliver and his Dixie Syncopators), and began performing more written arrangements with jazz solos. In 1927 the band went to New York, but Oliver disbanded the group to do freelance jobs. In the later 1920s, Oliver, struggling with difficulties in playing trumpet with his gum disease, began employing other trumpeters to handle the solo work, including his nephew Dave Nelson, Louis Metcalf, and the young, up-and-coming New Orleans trumpeter Henry "Red" Allen. He reformed the band in 1928, continuing with modest success until the continuing downturn of the economy made it more and more difficult to find bookings. This, coupled with his diminishing ability to play as a result of suffering from periodontitis, caused him to discontinue musical work by 1937. 　　As a player, Oliver took great interest in altering his horn's sound. He pioneered the use of mutes, including the rubber plumber's plunger, derby hat, bottles and cups. His favorite mute was a small metal mute made by the C.G. Conn Instrument Company, with which he played his famous solo on his composition the "Dippermouth Blues" (an early nickname for fellow cornetist Louis Armstrong). His recording "Wa Wa Wa" with the Dixie Syncopators can be credited with giving the name wah-wah to such techniques. 　　Oliver was also a talented composer, and wrote many tunes that are still regularly played, including "Dippermouth Blues," "Sweet Like This," "Canal Street Blues," and "Doctor Jazz." 　　Oliver performed mostly on cornet, but like many cornetists he switched to trumpet in the late 1920s. He credited jazz pioneer Buddy Bolden as an early influence, and in turn was a major influence on numerous younger cornet/trumpet players in New Orleans and Chicago, including Tommy Ladnier, Paul Mares, Muggsy Spanier, Johnny Wiggs, Frank Guarente and, the most famous of all, Armstrong. One of his protégés, Louis Panico (cornetist with the Isham Jones Orchestra), authored a book entitled The Novelty Cornetist, which is illustrated with photos showing some of the mute techniques he learned from Oliver. 　　As mentor to Armstrong in New Orleans, Oliver taught young Louis and gave him his job in Kid Ory's band when he went to Chicago. A few years later Oliver summoned him to Chicago to play with his band. Louis remembered Oliver as "Papa Joe" and considered him his idol and inspiration. In his autobiography, Satchmo: My Life in New Orleans, Armstrong wrote: "It was my ambition to play as he did. I still think that if it had not been for Joe Oliver, Jazz would not be what it is today. He was a creator in his own right."