The slider with stars controls the filter. Dragging horizontally selects the filter type, while dragging vertically adjusts drive. The area to the right controls filter frequency and resonance.
At the bottom of the interface is a keyboard of eight keys represented by Lissajous figures — curves created by combining two harmonic oscillations. Each figure corresponds to a note. Above the keys are two buttons: `
У` hold from
uderzhanie and `
П` tuning from
podstroika.
To learn more, please read the
documentation.