When you listen to a symphony orchestra, and the basses don't - there's no bass part, there's not that much depth. That's why I'm attracted to the instrument, the bass. It brings depth. It's like playing in a rainforest.

Some tracks are with quartet and some tracks are with synthesizer.

I came from being a singer going into jazz. And that's one of the things that polio did for me is it took away my ability to sing with a range because it paralyzed my vocal chords, so that was when I started playing. But I hear the music as if I were singing even when I am playing.

I don't sing now, because I had polio when I was 15, bulbar polio. This was when the epidemic was happening. And I was lucky that it didn't affect my lungs or my legs. It went to my face and kind of paralyzed my vocal chords, and I wasn't able to sing. And they said I was very lucky that I would get over it, which I did.

James Cotton is a real blues guy, and he played with Muddy Waters, and it surprised me that they would want me to make a record with them, that he called me to do this record. I'd never done anything like that before. But I love blues, so I was very happy.