 Objects include a portable harpsichord once owned by Prussia’s Queen Sophie Charlotte, flutes from the collection of Frederick the Great, and Benjamin Franklin’s glass harmonica.The Museum was founded in 1888 at the Royal Academy of Music in Berlin from a collection assembled by Philipp Spitta and Joseph Joachim.Thirty-four instruments from the Museum of Decorative Arts, which had once been heard at the state court of the Kingdom of Prussia, formed the basis of the collection.