Siel Mono

Siel Mono is a monophonic analog synthesizer manufactured by Siel Music in the late 1970s. It was used by many popular musicians of the time, including Kraftwerk, Jean-Michel Jarre, and Gary Numan.

The Siel Mono is a single-oscillator synthesizer with a single VCO (voltage-controlled oscillator) and a single VCF (voltage-controlled filter). It has a single envelope generator and a single LFO (low-frequency oscillator). It also has a built-in chorus effect and a noise generator. The Siel Mono is capable of producing a wide range of sounds, from bass and lead sounds to pads and sound effects. It is also capable of producing a wide range of modulation effects, such as vibrato, tremolo, and portamento.