MATRIXSYNTH: 1975 Elka Rhapsody 610 quick demo

Sunday, June 06, 2021

1975 Elka Rhapsody 610 quick demo

video by Valmont

"A simple string machine from the mid 70s, with the usual technologies of that time: a master top-octave oscillator, and frequency dividers making each key's pitch for the 61 sound generators boards.
The voices are then summed in a double chorus: one slow delay line, and one fast - both synchronized making regular phasing cycles.
Funny thing with these octave-dividers machines is that all the notes aren't perfectly "in tune". The first models had some key-pitch variations up to 10 cents from a traditionnal tempered keyboard! The rev.2 had a better pitch division, with pitch variation up to 2 cents, witch is pretty unnoticeable for common ears.

0:02 - Strings + Piano + Clavichord
0:14 - Violoncello + Strings
0:41 - Piano + Clavichord (with phaser)
1:08 - Violoncello + Strings (with phaser)"

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