A jazz saxophonist is a musician who plays the saxophone, a woodwind instrument, within the genre of jazz music. The saxophone, invented by Adolphe Sax in the 1840s, is known for its expressive sound and versatility. Jazz saxophonists often improvise, creating spontaneous melodies and rhythms that reflect their unique style and emotions. In jazz ensembles, saxophonists can play various roles, from leading melodies to providing harmonies and solos. Notable jazz saxophonists include John Coltrane, Charlie Parker, and Sonny Rollins, each contributing to the evolution of jazz through their innovative techniques and compositions.