Marghanita Laski , journalist and writer, makes a personal choice of records that includes a late Beethoven Quartet, a Scarlatti Sonata played by WANDA LANDOWSKA , and music by Stockhausen, Ligeti and Tavener. She also examines the influences that have contributed to her musical education. retracing a path from nursery rhymes, the synagogue and the tango, and she recalls how a simple piano piece by Beethoven has led to a fondness for musical jokes.