diff --git a/doc/5-wave/README.md b/doc/5-wave/README.md
index 19a07b104..a42ffd815 100644
--- a/doc/5-wave/README.md
+++ b/doc/5-wave/README.md
@@ -6,7 +6,11 @@ Furnace's wavetable editor is rather simple, you can draw the waveform using mou
 
 Furnace's wavetable editor features multiple ways of creating desired waveform shape:
 
-- Shape tab allows you to select a few predefined basic shapes and indirectly edit it via "Duty", "Exponent" and "XOR Point" sliders TODO: what the last two are doing? What is amplitude/phase for?)
+- Shape tab allows you to select a few predefined basic shapes and indirectly edit it via "Duty", "Exponent" and "XOR Point" sliders:
+  - `Duty` slider affects mainly pulse waves, determining its wisth, like on C64/VRC6
+  - `Exponent` powers the waveform in the mathematical sense of the word (^2, ^3 and so on)
+  - `XOR Point` determines the point where the waveform gets negated.
+  - TODO: amplitude/phase part
 - FM is for creating the waveform with frequency modulation synthesis principles: One can set carrier/modulation levels, frquency multiplier, connection between operators and FM waveforms of these operators.
 - WaveTools allows user to fine-tune the waveform: scale said waveform in both X and Y axes, smoothen, amplify, normalize, convert to signed/unisgned, invert or even randomize the wavetable.