Harmonica

Harmonica (Ger.: Harmonika), 1. Du., Fr.: glass harmonica; 2. see: mouth organ; 3. Engl. name of the piano stop more generally known as *una corda; 4. *bowed keyboard instr. invented by organ builder H. Schmidt of Rostock ca. 1782. Its continuous bow was worked by a treadle. Its compass was F1-f3 (149); 5. organ stop of open flue pipes, cylindrical, very narrow, usually of metal, at 8' pitch and on occasion at 16' pitch; also, the name of a free-reed organ stop. Cf. harmonica flute (133). Sort…