Master
The Master is not actually a sound source, but it allows you to create a general brainwave pattern that can be shared by other generators.
This simplifies adjustment by ensuring it only needs to be done in one place. However, generators do not have to use the Master; they can also define their own waveforms individually.
Graphics
The brainwave pattern can be roughly adjusted by moving the points.
List
List mode is more suitable for precise values.