The saxophone (also referred to simply as sax) is a conical-bored transposing musical instrument considered a member of the woodwind family. Saxophones are usually made of brass and are played with a single-reed mouthpiece similar to the clarinet. The saxophone was invented by Adolphe Sax in 1841, and patented in 1846 in two groups of seven instruments each. Each series consisted of instruments of various sizes in alternating transposition. The series pitched in B♭ and E♭, designed for military bands, has proved extremely popular and most saxophones encountered today are from this series. A few saxophones remain from the less popular orchestral series pitched in C and F. While proving very popular in its intended niche of military band music, the saxophone is most commonly associated with popular music, big band music, blues, early rock and roll, ska and particularly jazz. There is also a substantial repertoire of concert music in the classical idiom for the members of the saxophone family. Saxophone players are called saxophonists.