MATRIXSYNTH

Published on Apr 12, 2012 Creatures From the Black

"The Triadex Muse is a sequencer based synthesizer. It was produced in 1972. It was a deterministic event generator that used early digital integrated circuits to generate an audio output that could sound very musical. It was designed by Edward Fredkin and Marvin Minsky at MIT. It is an algorithmic music generator: it uses logic circuits to produce a sequence of notes based on the settings of various parameters. It has four small sliders that control Volume, Tempo, Pitch, and Fine Pitch. It is not known how many were made, but they are considered very collectable.
It was known to be used by the first wave of electronic musicians in the Philadelphia area in the late 70s. Users included: Charles Cohen, Lenny Seidman, Jeff Caine, George Keutemeyer, Rex X Ray and Stephan Spera, Paul Wozniki and the groups: Heavenside Layer, Ghostwriters, Watersports and The Orchestra of Philadelphia Electronic Musicians.
Muse was also used during the WXPN radio show Stars End by host Gino Wong in the fall of 1977.
The Muse is the subject of U. S. Patent 3610801.
For years, the Muse was a featured exhibit at the Museum of Science, Boston. The signage explained the device's algorithmic (and deterministic) approach to the creation of its seemingly random music. Far from being random, its preset "song" played continuously—and was even given a name, "Museum Musings," by the staff.
During her time as a fellow at the Center for Advanced Visual Studies, Maryanne Amacher famously composed much of her 'eartone' music using the device given to her by Marvin Minsky."

Babylon

Published on Nov 9, 2014 gaetano di giorgio

"Moog/Cotk"

Korg PS 3100 Analog Synthesizer SN 147513

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via this auction

"This auction is for Korg PS3100 was completely restored by one of the most prominent analog Synthesizer repair shop in the country, and in excellent working condition. It essentially a functional collectors item. There are, however two minor issue that haven't been addressed during the restoration (due to lack of parts) One is that left-most, highest key (upper E) does not make sound (that's because it need a chip KORG35-K710 that is shown in the last picture), if we manage locate that part before the auction ends we will replace it. Also, the resonator #2 is fairly week but it still functional. Other than that, the synth is working great and sounds incredible! The wooden case was also completely restored and it's essentially new!

Korg PS3100 is the first of the PS3xxx polyphonic analog synths that made a splash in the analog music world in the 70s. Many prominent musician used it and some still use it to this day due it its unique sound characteristic that is practically impossible to duplicate by any imitators or VA synths.

This synth is extremely rare, particularly in this beautiful condition (just look at the pictures)."

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PAIA MODULAR MODEL 4700

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" For your interest is the Paia modular 4700 in working condition from 1976, with light wear on tolex and modules, it is also well soldered inside and clean...

Here is what is included

1 4750 control oscillator/ noise module
3 VCO osillators 4720 model
2 VCF 4730 model
2 4710 balanced modulators
2 Buffer multiples 4761
2 Balanced modulator 4710
1 4771 regulated power
1 8780 Equal Tempered DA convertor
1 8781 Quash

8 paia spec'd pins cables from digikey for 50usd 3 with paia size to 1/8" to interface. It costs around 50 usd just for the pins."

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