In 1949 in jazz, Bebop dominates the scene, but Dixieland is still being played. Miles Davis makes the first recordings with other artists of what will be known as Cool Jazz. The first LPs are issued, as are the first 45s.

David Warren "Dave" Brubeck (born December 6, 1920) is an American jazz pianist. He has written a number of jazz standards, including "In Your Own Sweet Way" and "The Duke". Brubeck's style ranges from refined to bombastic, reflecting his mother's attempts at classical training and his improvisational skills. His music is known for employing unusual time signatures, and superimposing contrasting rhythms, meters, and tonalities.

His long-time musical partner, alto saxophonist Paul Desmond, wrote the Dave Brubeck Quartet's best remembered piece, "Take Five", which is in 5/4 time and has endured as a jazz classic on the top-selling jazz album, Time Out. Brubeck experimented with time signatures throughout his career, recording "Pick Up Sticks" in 6/4, "Unsquare Dance" in 7/4, and "Blue Rondo à la Turk" in 9/8. He is also a respected composer of orchestral and sacred music, and wrote soundtracks for television such as Mr. Broadway and the animated mini-series This Is America, Charlie Brown.

Brubeck was born in Concord, California and grew up in Ione. He is of English (maternal), Swiss and possibly Native American Modoc Tribe multi-ethnic (paternal) ancestry His father, Howard "Pete" Brubeck, was a cattle rancher, and his mother, Elizabeth (née Ivey), who had studied piano in England under Myra Hess and intended to become a concert pianist, taught piano for extra money. Brubeck originally did not intend to become a musician (his two older brothers, Henry and Howard, were already on that track), but took lessons from his mother. He could not read sheet music during these early lessons, attributing this difficulty to poor eyesight, but "faked" his way through, well enough that this deficiency went mostly unnoticed.

Sidney Bechet (May 14, 1897 – May 14, 1959) was an American jazz saxophonist, clarinetist, and composer.

He was one of the first important soloists in jazz (beating cornetist and trumpeter Louis Armstrong to the recording studio by several months and later playing duets with Armstrong), and was perhaps the first notable jazz saxophonist. Forceful delivery, well-constructed improvisations, and a distinctive, wide vibrato characterized Bechet's playing.

Bechet's erratic temperament hampered his career, however, and not until the late 1940s did he earn wide acclaim.

Bechet was born in New Orleans to a middle-class Creole of color family. Sidney's older brother Leonard Bechet (1877–1952) was a part-time trombonist and bandleader. Sidney Bechet quickly learned to play several musical instruments kept around the house, mostly by teaching himself; he soon decided to focus on clarinet. At the age of six, Sidney started playing along with his brother's band at a family birthday party, debuting his talents to acclaim. Later in his youth, Bechet studied with such renowned Creole clarinetists as Lorenzo Tio, "Big Eye" Louis Nelson Delisle, and George Baquet. Soon after, Bechet would be found playing in many New Orleans ensembles, improvising with what was "acceptable" for jazz at that time (obbligatos, with scales and arpeggios, and "variating" the melody). These ensembles included parade work with Henry Allen's celebrated Brass Band, the Olympia Orchestra, and John Robichaux's "genteel" dance orchestra. In 1911-1912, he performed with Bunk Johnson in the Eagle Band of New Orleans, and in 1913-1914, with King Oliver in the Olympia Band.

Miles Dewey Davis III (May 26, 1926 – September 28, 1991) was an American jazz musician, trumpeter, bandleader, and composer. Widely considered one of the most influential musicians of the 20th century, Miles Davis was, with his musical groups, at the forefront of several major developments in jazz music, including bebop, cool jazz, hard bop, modal jazz, and jazz fusion.

Miles Dewey Davis was born on May 26, 1926, to an affluent African American family in Alton, Illinois. His father, Dr. Miles Henry Davis, was a dentist. In 1927 the family moved to East St. Louis, Illinois. They also owned a substantial ranch in northern Arkansas, where Davis learned to ride horses as a boy.

Davis' mother, Cleota Mae (Henry) Davis, wanted her son to learn the piano; she was a capable blues pianist but kept this fact hidden from her son. His musical studies began at 13, when his father gave him a trumpet and arranged lessons with local musician Elwood Buchanan. Davis later suggested that his father's instrument choice was made largely to irk his wife, who disliked the trumpet's sound. Against the fashion of the time, Buchanan stressed the importance of playing without vibrato; he was reported to have slapped Davis' knuckles every time he started using heavy vibrato. Davis would carry his clear signature tone throughout his career. He once remarked on its importance to him, saying, "I prefer a round sound with no attitude in it, like a round voice with not too much tremolo and not too much bass. Just right in the middle. If I can’t get that sound I can’t play anything."Clark Terry was another important early influence.^{[citation needed]}

George Van Eps (7 August 1913 – 29 November 1998) (often called "the Father of the Seven String Guitar") was an American swing and Mainstream jazz guitarist noted both for his recordings as a leader, and for his work as a session musician. He was also the author of instructional books that explored his approach to guitar-based harmony. He was well known as a pioneer of the seven-string guitar, which allowed him to incorporate sophisticated bass lines into his improvisation. He was a strong influence on later seven-string players such as Howard Alden (with whom he recorded four CDs for Concord Records in the early 1990s), Bucky Pizzarelli, and John Pizzarelli (Bucky's son). He is the son of the legendary classic banjo player Fred Van Eps.