A musician is one who composes, conducts, or performs music. According to the United States Employment Service, "musician" is a general term used to designate a person who follows music as a profession. Musicians include songwriters, who write both music and lyrics for songs; conductors, who direct a musical performance; and performers, who perform for an audience. A music performer is generally either a singer, who provides vocals, or an instrumentalist, who plays a musical instrument. Musicians may perform on their own or as part of a group, band or orchestra. Musicians can specialize in a musical genre, though many play a variety of different styles, depending on the cultures and backgrounds involved. A musician who records and releases music can be known as a recording artist.