In one song by this composer, piccolo and clarinet, violin and cello, and the hands of the pianist are each paired in imitative counterpoint, which retrogrades when the title character turns around. In another work by this composer of "Der Mondfleck", various forms of a chord consisting of the pitches C, G-sharp, B, E, and A are distributed among instruments in a practice he called Klangfarbenmelodie. That is "Summer Morning by a Lake" from his Five Pieces for Orchestra. A string sextet by him is based on a poem by Richard Dehmel, in which a woman confesses to bearing 
In one song by this composer, piccolo and clarinet, violin and cello, and the hands of the pianist are each paired in imitative counterpoint, which retrogrades when the title character turns around. In another work by this composer of "Der Mondfleck", various forms of a chord consisting of the pitches C, G-sharp, B, E, and A are distributed among instruments in a practice he called Klangfarbenmelodie. That is "Summer Morning by a Lake" from his Five Pieces for Orchestra. A string sextet by him is based on a poem by Richard Dehmel, in which a woman confesses to bearing another man's child. A method invented by him involves ordering the chromatic scale into a tone row. For 10 points, name this composer of Pierrot Lunaire and Transfigured Night, founder of the Second Viennese School and inventor of the twelve-tone technique.
In one song by this composer, piccolo and clarinet, violin and cello, and the hands of the pianist are each paired in imitative counterpoint, which retrogrades when the title character turns around.
Arnold Schoenberg