The latest once upon a synth video takes a look at the classic Sequential Circuits Pro One synthesizer.

The Pro One, introduced in 1981, is a two-oscillator monophonic subtractive synth. It features deep modulation options, a basic arpeggiator and step sequencer, CV/Gate control and more.

Video Summary:

“Overview and tutorial of the Sequential Circuits Pro One synth. This is a vintage analog monophonic synthesizer from the 80s.

I go over each knob and switch and end with a bit of a demo. My keyboard double triggers occasionally and some of the switches are a bit scratchy but it gets better towards the end.”