grammy- winning jazz singer who has collaborated with many artists over the years, including herbie hancock, james taylor, paul simon, and so many more. our first project is called "the book of chet" and the other is called "duos iii". here is some of the making of "the book of chet". ♪ ♪ >> the idea was not to imitate art replicate let chet did or does, but to try to articulate his world. ♪ tavis: so why your particular are peculiar love for chet baker? >> a lot about his voice interest me. there is something about his voice that is not masculine or feminine, is some kind of androgenous sound. the fact that he sings so quietly, so no ornament to it. the lyrics, the poetry behind it, so much more than some of the loud voices. in that sound, i find a lot of his humanity. it is a great voice to go for. tavis: i like how you define and describe that. when you reference the humanity of chet baker, what are you hearing? >> vulnerability, the fact that it is not refined in a way that you and i would respect. we all know that he had a tragic life and was involved in drugs and was a junkie, really.