Roland RS09 Organ/Strings keyboard

The Roland RS09 Organ/Strings keyboard is a vintage analog synthesizer from the 1970s. It was used by many famous musicians, including Stevie Wonder, Herbie Hancock, and Jean-Michel Jarre. The RS09 is a two-voice polyphonic synthesizer with a built-in organ and strings section. It features a single oscillator with a sawtooth waveform, a low-pass filter, and an envelope generator. The organ section has two drawbars and a vibrato/chorus effect. The strings section has a single oscillator and a low-pass filter. The RS09 also has a built-in chorus effect and a spring reverb.