ring-mod

ring-mod ring-modulates every note against a fixed carrier key.

In Mantra, Stockhausen fed two pianos through ring modulators; this effect is that electronics reduced to notes: the played frequency and a carrier combine, and what comes out is their sum and difference, metallic where the originals were plain.

Every emitted component gets its own note-off, and a retrigger cuts the whole set first, so nothing sticks. Components that fall off the keyboard are dropped; components of one note that land on the same key sound once.

Parameters

At least one of sum, diff, and dry must be true.

Parameter	Type	Default	Range
carrier	key number	required	0..=127
sum	boolean	true	true, false
diff	boolean	true	true, false
dry	boolean	false	true, false

Example

miditool.kdl

input "Roland"
output virtual="miditool Out"

ring-mod carrier=60          // sum and difference tones against middle C

Play octaves and fifths of C and the output stays harmonic; drift a tritone away and it turns to metal.

Try this

Drop the carrier low and keep the dry note:

ring-mod carrier=33 dry=true

Against A1 the sum and difference hug the played note, so every key arrives with an upper and lower neighbor, a cluster halo around your line. Then push carrier=96 and the halo tears apart into gong partials.