For me, the difference between a musician reading an arrangement on a piece of paper, and them closing their eyes and listening to what's happening around them and responding to it, is huge.

I also tried to focus on songs that Billie Holiday wrote, songs that she had a hand in shaping, like "Strange Fruit"; songs that were written for her or songs that she wrote herself, like "Fine and Mellow" or "God Bless The Child."

For me, the difference between a musician reading an arrangement on a piece of paper, and them closing their eyes and listening to what's happening around them and responding to it, is huge.

I've sort of realized there's a definite pattern to my output at this point: there's an album that everybody sort of loves, that's a real balance between the old and new, like The Dreamer or No Beginning No End, like a blend of jazz and hip-hop, or r&b and soul and hip-hop.

I'm listening to a lot of Drake, and a lot of Frank Sinatra just because it's his centennial also. I'm going to be doing some tributes to him this year. I love that Beck album. It was funny to me because my two favorite albums of the year were definitely the Beyonce album and the Beck album.

If you look at the other singers of Billie Holiday's time, they were really trying to entertain. They were trying to make people feel good. They were singing fast - and she was singing the blues.

I really pulled from that repertoire that Billie Holiday was singing, and the way she sang it. It's sort of this beautiful, not really midpoint, but a period of her career where she really still had her voice. She had that deep wisdom that we've come to associate her with. To me, that's her at the height of her powers.