OptionalblurAmount to blur the effect
Optionalfade_How quickly a note fades once it stops sounding. Lower leaves a longer trail behind the melody.
OptionalgainBrightness applied to note energy after levelling
OptionalmirrorMirror the effect
Optionalnote_Highest note shown, as a MIDI number
Optionalnote_Lowest note shown, as a MIDI number. Below ~47 a semitone is narrower than one FFT bin, so notes start to smear together.
Specific configuration for the 'noteSpectrum' effect.