Over the Rainbow

This is American singer Eva Cassidy's moment. "I've rarely heard a voice of such purity," the pop star Sting said in the Washington Post. The music magazine Mojo praised Cassidy's "ability to draw every nuance of meaning and emotion from a well-crafted lyric." And fans sent her compilation album 'Songbird' to No. 1 on the British charts. "She would be well pleased," says her father, Hugh. "She would also be a little embarrassed."

Would be, because Eva Cassidy died five years ago of cancer at age 33. In life, she shunned the limelight that shines on her work...