Once I had the band, Jason [Moran] and John [Patitucci] and Eric [Harland] - it's very exciting to have that trio of just world-class guys - I already knew it was going to be fantastic. I didn't really tell them anything about it. They didn't know what they were going to play beforehand.

I love that [ late-50s Verve recordings] - to me, that's the epitome of vocal jazz. It's my favorite style and era of it.

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'm pretty much always planning two albums ahead.

I actually started the whole project some years ago with a live debut at Ancienne Belgique in Brussels. The focus was mainly on my favorite period of Billie Holiday, which was the late-50s Verve recordings, with essentially a small version of the Count Basie band.

The other songs [of Billie Holiday] - "Body and Soul" is like the standard - I also wanted some songs that I knew I would sound good on, as a producer. It's been the same nine songs since I debuted it back in 2012.

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."