Question: To what does the name of the musical genre which Stan Kenton produces in refer to?
Context: Robert Harry "Bob" Curnow (born November 1, 1941) is an American musician who served as a trombonist, staff arranger and producer for the Stan Kenton Orchestra during the 1960s and 1970s.  As a composer and arranger he has become well known for large ensemble jazz music set to contemporary fusion and rock music of groups such as Chicago, Blood, Sweat and Tears, and the Yellowjackets.  Most notably he arranged the music for and produced the award winning and critically acclaimed CD, "Bob Curnow’s L.A. Big Band Plays The Music of Pat Metheny and Lyle Mays."  His compositions and arrangements are heavily influenced by earlier writers for the Stan Kenton Orchestra such as Pete Rugolo, Bill Russo, Johnny Richards and Bill Holman.  Curnow is currently owner and President of Sierra Music Publications, Inc., he is also prominent in the instrumental music and Jazz Education fields. Stan Kenton / Jean Turner (full title "From the Creative World of Stan Kenton Comes the Exciting New Voice of Jean Turner") is an album by the Stan Kenton Orchestra with vocalist Jean Turner recorded in 1963 by Capitol Records. Stan Kenton Band Clinics were summer programs founded by Stan Kenton in 1959.  Kenton conceived the idea out of concern that education of jazz and all its forms were not reaching teenagers who showed signs of interest in it.  He strongly felt that the survival of jazz depended heavily on the ability of leaders and artists in jazz community to educate a younger generation. Stan Kenton Presents Gabe Baltazar is an album by Gabe Baltazar.  It was the last recording by Stan Kenton's Creative World Records label prior to Kenton's death on August 25, 1979.  It was also the last of the "Stan Kenton presents..." series of albums (Bill Holman, Bill Russo, Bob Cooper, etc.); this recording presents the talent of the alto saxophonist and former Kenton band member Gabe Baltazar.  Though never reissued on CD the recording is critically acclaimed and does a good job highlighting the jazz talents of a legendary jazz artist (Baltazar) at the peak of his playing career.  He is backed up by a 17 piece big band on most cuts, a string section is added to one track. Stan Kenton!  Tex Ritter!  is an album by the Stan Kenton Orchestra with country music vocalist Tex Ritter performing country music compositions arranged in a big band style recorded and released by Capitol Records in 1962. Progressive music is music that subverts genre and expands stylistic boundaries outwards.  Rooted in the idea of a cultural alternative, musical progressiveness embodies a continuous move between explicit and implicit references to genres and strategies derived from various cultural domains, such as European art music, Celtic folk, West Indian, or African.  The word "progressive" comes from the basic concept of "progress", which refers to development and growth by accumulation, and is often deployed in numerous music genres such as progressive country, progressive folk, progressive jazz, and (most significantly) progressive rock. Rugolo Plays Kenton (subtitled The Pete Rugolo Orchestra Plays Compositions Introduced by Stan Kenton) is an album by composer, arranger and conductor Pete Rugolo featuring performances of tunes associated with Stan Kenton recorded in 1958 and first released on the Mercury label. Cuban Fire!  is an album by Stan Kenton and his orchestra released in 1956 by Capitol Records.  This was Stan Kenton's big band's first full-length recording of Afro-Cuban-styled music.  The LP charted for four weeks in "Billboard" starting on September 15, 1956, peaking at #17.  The concept of the original 1956 recording centers on the "Cuban Fire!"  suite Kenton had commissioned from composer Johnny Richards.  The 1991 CD re-issue is augmented with one extra track from the 1956 sessions and five cuts recorded four years later by the first of Kenton's mellophonium orchestras. Stanley Newcomb Kenton (December 15, 1911 – August 25, 1979) was an American popular music and jazz artist.  As a pianist, composer, arranger and band leader, he led an innovative and influential jazz orchestra (1940s through '70s) garnering many successes across several music genres.  Though Kenton was to have several pop hits from the early 1940s into the 1960s, much like earlier band leader Paul Whiteman, he categorized his music as forward looking.  In Kenton's own words, it was "Progressive jazz".  He was also on the cutting edge of jazz education in creating the Stan Kenton Band Clinics starting in the late 1950s. Stan Kenton Plays Chicago is a studio album by American jazz musician Stan Kenton and his orchestra, released on August 17, 1974, by Creative World Records.  Recording sessions for the album took place in Chicago on June 4, 5, 6, 1974.  The sessions are entirely based on the music of modern rock n' roll groups, in contrast to Kenton's earlier work which primarily featured swing with some progressive jazz leanings.
Answer: development and growth by accumulation