Apart from large-scale symphonic works, which even take vocal soloists and choirs into account, Krzysztof Penderecki has written chamber music again and again. The present 'Serenata' for three cellos was composed for his wife's birthday and performed for the first time at the grand birthday party by Arto Noras, Ivan Monighetti and Andrzej Bauer. The relatively short one-movement composition makes equally high demands on all three players. As many technical and tonal qualities are employed, the listener experiences a varied and even quite entertaining piece. Again, Penderecki's individual trademark is evident, in conjunction with his fondness of composing for string instruments.