translation.ar: كتب عدة تنويعات كانوا باكورته, و لكن فى مرحلة نضجه لاحقا قال, " هاكم تيمة و 30 تنويعة"
translation.en: He wrote some early pieces, but late in his life, in his mature period, he said, "Here's a theme -- 30 variations."