Katelyn: Do you interpret them differently each time you return?
Simone: My tempo has changed a lot over the years. It's so odd how one tempo that felt completely right just feels wrong to me.
I've worked on Bach with dancers. They change their tempo from day to day—they don't even realize it. The music works at a wide variety of tempi…the main thing is a consistency of feeling that makes a tempo feel right.
Katelyn: How do you approach performance markings, when Bach’s music has so few?
Simone: What opened it up to me was working on the music of Philip Glass. Like Bach, Glass's music has very few markings. With music he wrote for me, when I've changed the tempo, dynamic, or voicing, he's always been open to it. One time he heard me perform Mad Rush and said, you play it completely differently than I do, but I like it.
Working on his music made me see the notes as a clean slate. Not just on a whim—I always look at the markings first. But if I feel the marking is getting in the way, then I change it.
I have taken to erasing loads of markings in any number of composers: Brahms, Beethoven. A few years ago, I was playing Charles Ives' Concord Sonata. I erased all his markings. Every single one.
And sometimes I change the notes. Less often, but I do sometimes. It's very liberating. So far nobody's ever said anything to me about it.
Katelyn: Keith Jarrett’s Encore from Tokyo is something you've performed quite a bit.
Simone: It's an improvisation Keith Jarrett did in a concert once. It's mind-boggling that this was a free improvisation—it reads as a totally composed piece. I will be recording it next year.
The piece has this ostinato that makes it sound like a passacaglia. Jarrett recorded and performed so much Bach and Handel, and you hear the influence. It has “ghost notes”—notes where he's almost not playing them. They're hinted at. If you listen to his recording, you just barely hear them.
The biggest challenge is, why would I be playing his improvisation? I decided I was just not going to think about that anymore, and that I was going to play it as I would any other piece. There are elements of his recording that I'm trying to emulate, like rhythm and rubato. But now I'm developing it into something different. I hope it's still growing, because if it stops growing, then it's dead.
Katelyn: New music is also an important part of your practice. How is it in dialogue with Bach’s music?
Simone: It's clear to me how new music has been influenced by [Bach]. I like music that is both highly intricate and very human and emotional. The new composers I play tend to meld those worlds.
Bach’s music is incredibly contemporary. [It’s] the most brilliant you could encounter in terms of intellectual complexity: the mathematical symbolism and rules regarding counterpoint and fugues and canons and retrograde and diversions. Limitations enabled him—they were tools towards something beyond what we can describe.
The fact that jazz musicians, or heavy metal, or whatever, can incorporate his music...I don't think you could say the same thing about Chopin. The fact that Bach’s music can be felt so deeply by somebody from a completely different world signifies something timeless and incredibly forward-thinking.