oooooooooooooooooooooooooooooooooooooooooooooooooooooo
the polyphon oooooooooooooooooooooooooooooooooooooooooooooooooooooo
An old, wonderful mechanical musical
instrument, the polyphon, makes an amazing sound when a metallic disc with
punched holes is moving over little gearwheels, which pull at small metallic
tongues. Anke Mellin, the owner of that musical instrument, asked me to
make it work again.
The reanimated polyphon
Looking at the old metallic discs,
I decided to create a π
- disc, on which the
holes are punched in direct correspondence to the digits of
π .
I began to punch the first 31 holes with a coordinate system x-y in the
center of the disc. One hole (tone) is defined by 4 digits, two digits
for the radius and the next two digits for the angle, counted from 0 degree.
When all 31 holes are done, the next group of 31 holes counts from the
maximum angle of the first group. This way I calculated the first 1464
digits of π
to get a polyphon - π
- disc you can see below.
"starry sky" of the metallic π
- disc
Now that the disc is designed, I
have to find a very good craftsman to make it real. For all, who cannot
wait until the disc is done
: >>>>> You have the opportunity
to hear the digital sound of the polyphone -
π
- disc! <<<<<<<<
I created this sound using the
amazing GRAPHIC COMPOSER by Jürgen Lange.