Pitch

Color category, instrument-level.

Shifts the instrument up or down in pitch, in semitones and in cents. Useful for octave doubles, harmony lines, and detuning that thickens a sound.

Controls

Shift. The main interval, in semitones. At the centre nothing moves; the ends reach a full octave down and a full octave up. Octaves and fifths blend naturally because they belong to the same harmonic series as the original. A semitone or two apart is dissonant, which sounds eerie or metallic and is a creative effect rather than a harmony.

Fine. Detuning in cents, on top of whatever Shift is doing. With Shift at the centre and a little Fine you get a doubling: two copies of the note, slightly out of tune with each other. It thickens like a chorus but stays still, because nothing is modulating.

Mix. Whether you hear the shifted signal alongside the original or instead of it. Balanced evenly, an octave or a fifth reads as two-part harmony. Fully wet, it is a straight transposition and the original is gone. For thickening with Fine, keep the shifted copy behind the original so the result does not sound processed.

Presets

Octave Up, Octave Down, Fifth Up, Detune.

When to use it

Octave down on a bass line adds a sub layer. Fifth up gives guitar and synth leads a power-chord weight. Detune at an even mix thickens without the chorus wobble.