loose-keys

loose-keys redraws every note you play: the same key twice gives two different notes.

Where shuffle-lock is a fixed remapping, loose-keys is a note cloud. In uniform form the keyboard becomes a trigger surface: any key fires a random note from a range, and what you control is rhythm and dynamics. In Gaussian form the notes scatter around what you play, so your line is still audibly there, just smeared; small sigma is a nervous vibrato of pitch, large sigma is a cloud with your melody as its center of mass.

The draws are seeded, so a recorded take is reproducible: the same seed and the same playing give the same notes. Note-offs always match their note-ons, whatever was drawn.

Parameters

loose-keys has two forms. Giving sigma selects the Gaussian form; otherwise lo/hi select the uniform form. If both are given, sigma wins.

Parameter	Type	Default	Range
seed	integer	required	any unsigned 64-bit value
lo	key number	21 (A0)	0..=127, at most hi
hi	key number	108 (C8)	0..=127
sigma	number	none	finite, greater than 0; in semitones

Example

miditool.kdl

input "Roland"
output virtual="miditool Out"

loose-keys seed=7 lo=48 hi=84      // uniform: three octaves around middle C

And the Gaussian form:

miditool.kdl

input "Roland"

loose-keys seed=7 sigma=3.5        // notes wander a few keys from what you play

Try this

Humanize only the accents. Loud hits fire random high notes while normal playing passes untouched:

fork {
    pass
    chain {
        notes-only
        velocity-range lo=100 hi=127
        loose-keys seed=11 lo=72 hi=96
    }
}

Then shrink sigma in a Gaussian patch to 0.5 and listen to it hover at the edge of wrong.