See Setting Equalizer for common recommendations on how to choose Equalizer settings.
Equalizer Pitch tab area is displayed in two colors. The light bars represent pitches, dark bar represents scale mask. Result mask is calculated by multiplying pitch volume on corresponding degree scale volume. Pitch tab controls volume of each pitch.
By clicking the area above the keyboard, you set the corresponding note volume to a certain value. You may also double-click any note on the keyboard to set it to minimum or maximum.
The buttons 0%, 50% and 100% put all bars of the Equalizer to the corresponding position.
Note: Because only relative volumes are used, there is no difference if all values are set to 100% or 50% positions. Use them as an intermediate step of equalizer adjustment.
To play back a particular note, click a corresponding key on the keyboard while holding Shift.
In the heading you can see pitch and frequency of a selected key, and its relative volume.
Note: WIDI octave number corresponds to MIDI octave plus 3 (i.e. WIDI note C-1 equivalent for MIDI note C-4).