With her almost supernaturally clear and agile soprano, Emma Kirkby has enchanted audiences ever since she first appeared on the Early Music scene in the 1970s. And as the art of historically informed performance has become more and more widely appreciated, so has her style of singing, to the extent that she in 2007 was included in a listing of ‘the 20 greatest sopranos ever’ made by the BBC Music Magazine. Throughout her career, Emma Kirkby has made a large number of recordings of a wide range of music. Released on the occasion of her 60th birthday, the present collection celebrates her collaboration with BIS, which has resulted in ten discs to date.