MATRIXSYNTH: Rare Seiko SQH-379 Prima Harmony Trainer SN 37900074


Monday, November 27, 2023

Rare Seiko SQH-379 Prima Harmony Trainer SN 37900074

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"On the left it has a metronome with some great pseronality. It has 0, 2, 3, 4, 5, and 6 beat divisions. The little light bounces back and forth across the arc of lights.

In the center we have the leyboard and tweak station. The keys stretch two octaves from F to F. It's 4 note polyphonic, with any notes that are input and held with the "hold" button are stolen from the polyphony count. The knobs and sliders (3 with missing caps) above the keys can be used to slightly raise and lower the pitch and volume of each note. The effects are subtle. (I've wondered if there is a way to circuit bend it to exagerate the effects.) Still, if you play a chord and tweak the pitches, you can hear interesting phasing between the tones. It becomes a chill, almost meditative experience.

The keys stretch two octaves from F to F. It's 4 note polyphonic, with any notes that are input and held with the "hold" button are stolen from the polyphony count.

On the right we have the four sounds called I, II, III, and IV. They are a variety of classic casio-like digitlal organ or sine wave sounds. They sound great if you play cords detuned with the knobs above.

A slider for setting the master pitch (A415, 438, 440, 442, 443, or 445) and

An octave slider (4 different octaves).

A Hold buttton.

It has a monophonic 1/4" output, tested and works.

It also has a monophonic input that allows for use of the tuner on the right. There is also a built in mic that can trigger the tuner as well. I don't think the mic or line input were intended to come out of the speaker.

It runs on 6 AA batteries or with a 9 volt DC center-negative AC to DC adapter."

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