Billie Holiday's slow, mournful phrasing made her one of jazz's most influential singers, and her tender legacy lives on in modern vocalists like Cassandra Wilson, who renders “Goodbye Morning Heartache” at a spooky simmer. But it's just as fascinating to hear other late legends pay tribute, from Sam Cooke's breezy take on the melancholic “Solitude” to Frank Sinatra's gorgeous elegy “Lady Day.”