The duties of a professional piano player vary depending on the needs of their clients or employer. In all piano jobs, your job is to play the piano. Your responsibilities may include performing during a concert or show, playing the piano during a recording session, playing during a religious ceremony or special event, or accompanying other musicians during a performance. You may also arrange the piano accompaniment to a composition. In addition to working during a performance or recording, you may practice during a rehearsal period by yourself or with other musicians and sound technicians.