The name of the alto saxophonist who joined Miles Davis in 1958 and expanded the quintet to a sextet and produced a deep and full tone that listeners mistakenly thought they were hearing the tenor saxophone is Cannonball Adderley.
Julian Edwin Adderley or mostly known as Cannonball Adderley is one of the popular Jazz musicians who plays the alto saxophone. In 1958, Adderley joined with Miles Davis which made members of Miles Davis 6 people. Adderley playing the alto saxophone is often assumed by listeners that they were hearing the sound of the tenor saxophone because of the full and deep sound Adderley plays.
Learn more about Cannonball Adderley at https://brainly.com/question/15371760
#SPJ4