A coloratura mezzo-soprano has a warm lower register and an agile high register. The roles they sing often demand not only the use of the lower register but also leaps into the upper tessitura with highly ornamented, rapid passages. They have a range from approximately the G below middle C (G3, 196 Hz) to the B two octaves above middle C (B5, 988 Hz). Some coloratura mezzo-sopranos can sing up to high C (C6, 1047 Hz) or high D (D6, 1175 Hz), but this is very rare.