Harmonicon
Harmonicon (Ger.: Harmonikon), 1. name sometimes given to the *musical glasses; 2. name sometimes given to the *glass harmonica; 3. a later name of the *vis-à-vis; 4. a combination of a glass harmonica with keyboard and of 4 stops of organ pipes, built by the Bremen Kapellmeister Wilhelm Christian Müller, ca. 1795. The 2 manuals permitted the instrs. to be played separately or together.