Final answer:
B.B. King is not considered a Chicago Blues musician; he is more closely connected with Memphis Blues. Chuck Berry, while not from the Chicago Blues scene, did create a blues-based rock 'n' roll that influenced the genre.
Step-by-step explanation:
Among the given options, B.B. King is the musician who is not typically classified as a Chicago Blues artist. While Muddy Waters, Howlin' Wolf, and even Chuck Berry had strong connections to the Chicago Blues scene, B.B. King is more closely associated with the Memphis Blues style. B.B. King, known for his expressive singing and guitar playing, had a significant impact on the blues genre overall but did not originate from the Chicago Blues tradition.
Chuck Berry, although not a traditional Chicago Blues artist, did contribute significantly to the development of rock 'n' roll with blues influences, as exemplified by his hit "Maybellene". Berry's music often incorporated a variety of influences into a blues-based rock 'n' roll sound, which shows the cross-pollination of musical styles during that era. The Chicago Blues, heralded by artists like Muddy Waters and Howlin' Wolf, was characterized by its strong rhythm and electric guitar sound, emblematic of the post-World War II urban migration and the electrification of blues music.