The AS711 alto saxophone key design allows for correct and comfortable hand position. The yellow brass body includes ribbed construction and a detachable, reinforced body-to-bow connection for added strength and durability. The Prelude bore design enhances projection. The AS711 alto saxophone key design allows for correct and comfortable hand position. The yellow brass body includes ribbed construction and a detachable, reinforced body-to-bow connection for added strength and durability. The Prelude bore design enhances projection. The Prelude Series... Designed as an affordable option for beginning band students, the Prelude series of entry-level instruments combines value and performance. All instruments are built to stringent specifications as determined by Conn-Selmer and Bach and supported by our ongoing commitment to service. Each outfit includes instrument, necessary accessories, and care & maintenance instructions.