Philosophy in the Bedroom Philosophy in the Bedroom Philosophy in the Boudoir ("La philosophie dans le boudoir") is a 1795 book by the Marquis de Sade written in the form of a dramatic dialogue. Though initially considered a work of pornography, the book has come to be considered a socio-political drama. Set in a bedroom, the two lead characters make the argument that the only moral system that reinforces the recent political revolution is libertinism, and that if the people of France fail to adopt the libertine philosophy, France will be destined to return to a monarchic state. In the chapter titled "Fifth Dialogue",
Evolution of timpani in the 18th and 19th centuries of pedal timpani. For example, in the final waltz in Act 3 of his opera, "Der Rosenkavalier", Strauss wrote for the timpani the way he wrote for the bass, with a long, walking melodic line. He accomplished this by requiring the timpanist to make many quick and challenging changes in the drums pitch that imitated the walking bassline that occurs throughout the entire waltz. Evolution of timpani in the 18th and 19th centuries The modern timpani evolved in the 18th and 19th centuries from the simple 12th-century membranophone of the Naker to a complex instrument, consisting of a suspended kettle