mezzo-soprano sung by Anne-Sofie von Otter mezzo-soprano sung by Anne Sofie von Otter mezzo-soprano sung by Melanie Sonnenberg mezzo-soprano sung by Agnes Baltsa mezzo-soprano sung by Ann Hallenberg mezzo-soprano sung by Janet Baker mezzo-soprano sung by Cecilia Bartoli mezzo-soprano sung by Katherine Jenkins mezzo-soprano sung by Joyce DiDonato mezzao-soprano sung by Cecilia Bartoli