Bauhaus-Universität Weimar

Then came the “Æolomelodicon,” by Brunner, of Warsaw, with brass tubes over the reeds; the 
“ Æolsklavier,” by Schortmann, of Buttelstädt, about 1825 ; and the “Æolophon ” of Day and Münch, which 
was patented in London, June 19, 1829. In the last-named instrument, attempts were made to alter the 
form of the reed, and tubes of various sizes and shapes were introduced to modify the sound. 
It is an interesting fact that on the same day the æolophon was patented, a patent was also taken out 
by Wheatstone for a most ingeniously constructed instrument called by him “ Symphonium,” of which 
the Concertina, also invented by him, was a modification. 
In the symphonium the apertures, over which the reeds were placed, were closed at the back by valves 
or pallets, which effectually obstructed the passage of the air. These valves were opened by means of 
studs, or keys, placed on both sides of the instrument. 
Fig. 7. 
At a the reeds are shown, the front of the wind-chest being, of course, removed, b is the front plate, 
with aperture against which the mouth was placed, c is a side view, showing positions of the little ivory 
keys and embouchure or mouthpiece. 
Florid passages in single notes could be played upon the symphonium with ease ; and full chords like 
those in the following passage were practicable and effective:—


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