Dizzy Gillespie Gillespie left Eckstine's band because he wanted to play with a small combo. A "small combo" typically comprised no more than five musicians, playing the trumpet, saxophone, piano, bass and drums. Bebop was known as the first modern jazz style. However, it was unpopular in the beginning and was not viewed as positively as swing music was. Bebop was seen as an outgrowth of swing, not a revolution. Swing introduced a diversity of new musicians in the bebop era like Charlie Parker, Thelonious Monk, Bud Powell, Kenny Clarke, Oscar Pettiford, and Gillespie. Through these musicians, a new vocabulary of musical
Jazz guitar who had absorbed the language of bebop, the guitar began to be seen as a “serious” jazz instrument. Improved electric guitars such as Gibson’s ES-175 (released in 1949), gave players a larger variety of tonal options. In the 1940s through the 1960s, players such as Wes Montgomery, Joe Pass, and Jim Hall laid the foundation of what is now known as "jazz guitar" playing. As jazz-rock fusion emerged in the early 1970s, many players switched to the more rock-oriented solid body guitars. Other jazz guitarists, like Grant Green and Wes Montgomery, turned to applying their skills to pop-oriented styles that