ORCHESTRION  , a name applied to three different kinds of

instruments . (I) A chamber organ, designed by Abt Vogler at the end of the 18th century, which in a space of 9 cub. ft. contained no less than 900 pipes, 3 manuals of 63 keys each and J9 pedals (see HARMONIUM) . (2) A pianoforte with organ pipes attached, invented by Thomas Anton Kunz of Prague in 1791 . This orchestrion comprised two manuals of 65 keys and 25 pedals, all of which could be used either independently or coupled . There were 21 stops, 230 strings and 36o pipes which produced 105 different combinations . The bellows were worked either by hand or by machinery . (3) A mechanical instrument, automatically played by means of revolving cylinders, invented in 1851 by F . T . Kaufmann of Dresden . It comprises a complete wind orchestra, with the addition of kettle-drums, side-drums, cymbals and triangle . (K .