A professional who sings as soloist or member of vocal ensemble. Responsibilities include:

• Interprets music, using knowledge of harmony, melody, rhythm, and voice production, to present characterization or to achieve individual style of vocal delivery.
• Sings, following printed text and musical notation, or memorizes score.
• May sing a cappella or with musical accompaniment.
• May watch choral director or conductor, orchestra for directions and cues.
• May be known according to voice range as soprano, contralto, tenor, baritone, or bass.
• May specialize in one type of music, such as opera, lieder, choral, gospel, folk, or country and western and be identified according to specialty.