I stumbled upon the Basso Moderno Duo while clicking around, and the fact that they were playing a piece written by Yoko Ono immediately intrigued me. Here is information on the duo from their website:
The Basso Moderno Duo has commissioned over one hundred lyrical works for solo bass and piano by some of the world’s most prominent and exciting living composers. Composers from over thirty countries have written specifically for Allan Von Schenkel’s virtuosic and highly individualized manner of playing. Kristen Williams piano playing is a perfect complement to the intense voice of the solo bass. Williams is a focused musician who is able to share, with the listener, her devotion to the piano. Our program is designed to delight and surprise audiences with a combination of lush sounds, tasteful writing and lyricism.
Here is a video of a performance of Yoko Ono’s Secret Piece II with Allan Von Schenkel: