Louis Armstrong (1901-1971) was a trumpeter, vocalist, and bandleader whose innovations in jazz improvisation and scat singing shaped American music for generations. His warm, distinctive voice and virtuosic trumpet playing made him one of the most recognizable musicians of the 20th century, and his interpretations of popular standards remain touchstones for jazz education and performance.
Billy Eckstine (1914-1993) was a baritone vocalist and bandleader whose smooth, sophisticated delivery and technical command influenced countless singers. He was instrumental in bridging the worlds of swing and bebop, and his work with jazz ensembles helped establish the standard vocal repertoire that music students continue to study and perform.