has appeared with the Scottish Chamber Orchestra, Spoleto Festival Orchestra, Thailand Philharmonic Orchestra, the Schoenberg Ensemble, and the Los Angeles Philharmonic in Disney Hall. He has performed at the Concertgebouw in Amsterdam, Glinka Hall in St Petersburg, the Konzerthaus in Berlin, and for many years performed throughout the US as a member of the Los Angeles Piano Quartet. He has performed with the Cuarteto Casals, the Prazak, New Zealand, and Miami string quartets, and held chamber music residencies at the Tanglewood Music Center, Spoleto Festival and Olympic Music Festival. He is the director of Ensemble X, a new music ensemble, and has served on the faculty of Kneisel Hall, the Eastern Music Festival, and at the Chamber Music Conference at Bennington College. Bjerken has worked closely with composers Győrgy Kurtag, Sofia Gubaidulina, Steven Stucky, and George Benjamin, and over the next two years, will be presenting premieres of piano concertos by Stephen Hartke, Elizabeth Ogonek, and Jesse Jones. He released his first solo recording on CRI in 2001, and has since recorded for Koch International, Chandos, Albany Records, Artona, and is about to release his third recording for Open G Records, presenting solo and chamber works by Steven Stucky. Xak Bjerken is Professor of Music at Cornell University where he co-directs Mayfest, an international chamber music festival with his wife, pianist Miri Yampolsky. Bjerken studied with Aube Tzerko at the University of California at Los Angeles and received his Master’s and Doctoral degrees from the Peabody Conservatory as a student of and teaching assistant to Leon Fleisher.