Orca Cheat Sheet

In Orca every letter on the grid is an operator that sends MIDI, OSC or UDP. Lower-case runs on a bang; upper-case runs every frame. Here's what each operator does.

Reading the grid

*Bang — bangs the neighbouring operands

Upper-case (A)Runs every frame

Lower-case (a)Runs only when banged

#Comment — halts the rest of the line

Values & movement

D8Clock: bangs on a divider

RRandom value

CClock counting up to a modulo

N E S WMovers: travel that direction, banging what they land on

IIncrement a value up to a cap

Maths & logic

AAdd two neighbours

BSubtract

MMultiply

FIf — bang when two inputs are equal

LLesser of two inputs

ZLerp toward a target

Flow

HHalt — stops a value passing

JJumper — copies the value above

TTrack — reads one of several inputs

UEuclid — bang on a euclidean rhythm

VVariable — write and read named values

Output

:midi — sends a MIDI note (channel, octave, note)

%mono — sends a monophonic MIDI note

!cc — sends a MIDI control change (channel, knob, value)

=osc — sends an OSC message to a path

;udp — sends a UDP message

$self — sends an ORCA command to the grid itself

Orca — Esoteric grid sequencer. · Orca in the tool directory →

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