Music typewriter

The music typewriter is based on the principle of a mechanical typewriter, it has a keyboard, levers which bear the type, and an ink ribbon. In order to be able to write scores with all the necessary characters, however, Schönberg had to extend and change the conventional design. The paper is not inserted into a roller, and a flat surface serves as a writing surface. It can be moved from left to right, upwards and downwards, turned in a circle around a midpoint and can also be tilted. In this way, every section of the writing surface can be reached with the utmost precision. Tilting is necessary because Schönberg designed the print head with a trapezoidal cross section in order to fit three characters on the type bars, and in order to keep the number of type bars – which is still an impressive 120 – within a reasonable limit. Tilting the writing surface achieves a parallel position in relation to one of the three surfaces on the print head and enables the character to be printed. The typewriter has around 40 keys which are pressed to type the character. The movements of the writing surface can be combined using special two-piece key heads and supplementary levers in order to print diagonal lines, phrase marks and curves. The notes themselves are made up of various characters. In addition, a choice of three type sizes is available as the keyboard can be shifted into three different positions. As each key therefore has nine functions, Schönberg’s music typewriter is able to produce up to 360 different characters. Arnold Schönberg’s music typewriter dated 1909 was never realised, but the designs show an enormous amount of imagination and mechanical talent.