stylistic:tone, information:classification
Modern saxophone emerges

The modern layout of the saxophone emerged during the 1930s and 1940s, first with right-side bell keys introduced by C. G. Conn on baritones, then by King on altos and tenors. The mechanics of the left hand table were revolutionized by Selmer with their Balanced Action instruments in 1936, capitalizing on the right-side bell key layout. In 1948 Selmer introduced their Super Action saxophones with offset left and right hand stack keys. Thirty to forty years later this 1948 Selmer layout was nearly universal.

The high F ♯ key was also first introduced as an option on the Balanced Action model, although it took several decades for it to gain acceptance because of perceived deleterious effects on intonation.

Marcel Mule established study of the saxophone as a classical instrument at the Conservatoire de Paris from the 1940s. Larry Teal did the same in the United States at the University of Michigan a decade later. A number of other American institutions have since become recognized homes for the study of classical saxophone. They include Northwestern University, Indiana University, and the Eastman School of Music.