Compact disc.
Program notes by Richard Whitehouse and biographical notes on the performers, and text (romanized) with English translation (12 p. : ports.) inserted in container.
Recorded Apr. 26-27, 2010 (1st work), and Sept. 29-30, 2009 (2nd work), Warsaw Philharmonic Hall, Warsaw, Poland.
The 1st work sung in Church Slavic.