— The Composer of the Month focuses on improving opera composers' biographies and articles relating to their works. —
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Krzysztof_Penderecki_20080706.jpg/80px-Krzysztof_Penderecki_20080706.jpg)
The composer of the month for December is Krzysztof Penderecki...
The following articles on his operas are stubs needing expansion:
We also lack articles on Jerzy Jarocki, Penderecki's co-librettist for Ubu Rex, and Walter Raffeiner , who created the role of Silvanus Schuller in Die schwarze Maske.