Louis Armstrong (1901-1971) transformed jazz from a regional novelty into a global art form. His innovative approach to phrasing, his distinctive warm tone, and his gift for melodic interpretation set the standard for jazz vocalists and instrumentalists alike. Armstrong's influence extends far beyond jazz; his interpretations of American songbook standards helped establish the repertoire that defines jazz education today.
Fats Waller (1904-1943) was a pianist, organist, composer, and vocalist whose wit and musicality made him one of the most recorded artists of the 1920s and 1930s. "Ain't Misbehavin'" showcases Waller's gift for accessible melody and his ability to infuse popular song with genuine swing and harmonic sophistication. His prolific output remains central to the jazz standards curriculum.