Triangle Wave

The triangle wave shares the square's odd-harmonic makeup but rolls off its upper harmonics far more steeply, so those overtones are much weaker. The result is a soft, mellow tone that sits sonically between a pure sine and a brighter square. Triangles are useful whenever you want a little more presence and edge than a sine offers without the buzz of a saw — gentle leads, flute-like tones, and warm sub bass all suit it well. Because it carries some harmonic content, a triangle also responds musically to filtering and distortion, letting you gradually add brightness or grit. It is a common choice as a soft LFO shape too, producing smooth back-and-forth modulation.