devices/monome/norns.vendor.fw-asterion-e9fb465.jsonEdit on GitHubJSONMonome norns (script asterion): OSC control from Claude, scripts and controllers
10 named commands to drive Monome norns over OSC — from Claude (MCP), live-coding environments or a MIDI controller.
- sourcemaker's documentation
- firmwareasterion-e9fb465
- real unitnot yet checked
Not checked on a real Monome norns yet. Own one? Load a sound or send a control, and tell us whether it worked.
- Maker
- Monome
- Version
- script asterion (cachilders/asterion @ e9fb465)
- Source
- maker's documentation
- OSC prefix
/norns_asterion
From the README of cachilders/asterion at e9fb465, licence MIT.
Asterion
An inscrutable adventure game as a percussive drone sequencer
Asterion is an unconventional musical instrument. It's a noisy corridor simulator with gloom modulation, a sequencer programmed a move at a time by exploring a randomly generated maze. Past steps dog your heels as your actions play back upon you. It's a paean to Jorge Luis Borges. Maybe it's even an art project.
"All the parts of the house are repeated many times, any place is another place."
Use
Each floor of the labyrinth is generated at random with a couple of simple rules for distributing keys and locks.
Use arrow keys or W, A, S, D to navigate. Collect keys with SPACE or ENTER. Unlock doors with the same.
Every locked door has a matching key, and every floor has a final door that descends to the next level. Repeat ad nauseum. Loops, however, are finite. Each step advances the loop and records a new step at that index with audio characteristics defined by the situation of the room and the player's inventory. The Number of steps in the loop and the depth of events at each step are determined by the app params. The default is a loop of 16 steps with each step having a maximum event depth of 4 events. The result is like overdubbing, where each step recorded proceeds along the loop and then wraps around, but rather than overwriting the original step, a new event is added (up to the maximum allowed). Over the max, the next step records to the first index at the step and the original is lost.
While events are recorded in a breadth-based loop, playback is depth-first. At each step in the playback loop, which begins advancing when the splash screen is dismissed, all available modulation events within that loop step are played before advancing to the next step. 1:1, 1:2, 1:3, 2:1, 2:2, 3:1, and so on.
Adjust the Drone Base note, Loop Length, and Max Step Depth, along with various Asterion (Engine) characteristics in the params menu. Note that in the Asterion (Engine) params, only amplitude, hz and noise amplitude will stay where you put them due to the nature of the script.
In addition to the sequenced drone, programmed by exploring the labyrinth, you can play accent notes in scale from the drone base using your (typing) keyboard's number keys. These will play the ten notes in the scale of your selection from the Asterion parameter group. You may also adjust the fixed velocity of accent notes played. Note that attack, decay, sustain and release within the Asterion (Engine) params apply exclusively to the Accent feature in this script and have not effect on the drone.
Parameter adjustments and accent notes are not recorded to the loop. Only events from gameplay are sequenced.
Use it
Start the bridge with this driver; it forwards named OSC commands to the software:
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as norns_asterion: ask “what can the Monome norns do?” and it reads this map with list_routes. See the MCP guide.
MIDI controls
10 controls, each with its number, its range and the name to send
OSC commands
| Command | Arguments | Name to send |
|---|---|---|
| Param | id: string, value: float | /norns_asterion/param/{id} |
| Param {set} {id} | set: string, id: string, value: float | /norns_asterion/param/{set}/{id} |
| Remote key | n: int, z: int | /norns_asterion/remote/key |
| Remote enc | n: int, delta: int | /norns_asterion/remote/enc |
| Remote brd | code: int, z: int | /norns_asterion/remote/brd |
| Param base | value: int | /norns_asterion/param/base |
| Param loop length | value: int | /norns_asterion/param/loop_length |
| Param step depth | value: int | /norns_asterion/param/step_depth |
| Param scale type | value: int | /norns_asterion/param/scale_type |
| Param velocity | value: int | /norns_asterion/param/velocity |
The same MIDI as norns.vendor.fw-2.9.4, which this firmware shares.
Limitations
Source: the Lua source of the norns script asterion by notester (cachilders/asterion at e9fb465), listed in norns.community. Shares the norns system OSC of monome/norns.vendor.fw-2.9.4 (port 10111, /param, /remote): give the norns' IP address as host override. Its own routes are the 5 parameter(s) whose id is written out in its source, read without running it, with range, options and default when written out too; set them while the script runs on the norns. 2 parameter call(s) could not be read without running the script (ids built at run time, values from variables) and are not mapped: reach them with the base driver's /param/{id}. Parameters added by libraries or engines outside the repository are not mapped either. A value goes in the parameter's units (an option's index from 1). MIDI is not mapped: the script's MIDI handling is its own and parameter MIDI mappings are learned by each user (PMAP). Untested on hardware.
Other versions
The Monome norns is mapped in 356 versions. per Electra preset, per Electra preset, per Electra preset, norns system OSC, v2.9.4, script 32-harmony, script 3d, script 4-big-knobs, script 4CCFader, script abacus, script acid-test, script ack, script acrostic, script amen, script amenbreak, script animator, script arcify, script arcologies, script arp_index, script ash, script ashsynth, script automs70, script avonlea, script awake, script awake-ashsynth, script awake-passersby, script awake-rings, script _awed, script b-b-b-b-beat, script bakeneko, script barcode, script barycenter, script beacon, script beets, script benjolis, script bistro, script bitebeet, script bitters, script bline, script blippoo, script blndr, script bloom, script blue, script boingg, script bounds, script bowering, script breakthrough, script buoys, script caliper, script carter's delay, script cc-canvas, script cccccccc, script changes, script cheat_codes_2, script choukanzu, script circles, script clarck, script clcks, script clipper, script clockabout, script colorwheel, script combiner, script combos, script compass, script concrete, script constellations, script corners, script cranes, script crow_talk, script cryptkeeper, script cybermidi, script cyrene, script d, script delar, script delayyyyyyyy, script delinquencer, script demoncore, script descartes, script dimension-expander, script downtown, script dreamsequence, script drift, script dronecaster, script drum_room, script duatone, script dunes, script Eastwind, script easygrain, script eels, script ekombi, script endless-stairs, script esper, script eterna, script euclidigons, script faeng, script fall, fates 2.9.3, script fiahod, script fibonacci, script fixed-filter-banking-crisis, script flora, script fm7, script folio, script footfoot, script forge, script foulplay, script foundry, script fugarc, script fugu, script gematria, script gemini, script get in the sea!, script giro, script glaciers, script glitchlets, script glitchlooper, script glut, script goldeneye, script grains, script graintopia, script granchild, script grd, script grendy, script greyhole, script grid-test, script gridofpoints, script gridofrings, script gridstep, script groovecats, script grurder, script hachi, script hands, script haven, script haze, script here-there, script hid_demo, script Hiswing, script hpns, script hs010, script icarus, script iiitoii, script impact, script ingenue, script initenere, script internorns, script interpret, script intervaltrainer, script islands, script isoseq, script jala, script jiffy, script just-play, script justharmonicon, script KoiBoi2, script kolor, script kreislauf, script kria_midi, script krill, script l_ll__l_, script lamellae, script lamination, script larc, script lemniscate, script leslie, script less-concepts, script lissadron, script loom, script lorenz, script lorenzos-drums, script loudnumbers_norns, script luck, script m18s, script magnetar, script magpie, script makebreakbeat, script mangl, script manifold, script marcovaldo, script massif, script MDPatch, script MDScaler, script meadowphysics, script metrix, script metronome, script midarto, script midi-monitor, script midi-review, script midididi, script midigrid, script midiplayer, script mlr, script mlre, script Mnmpatch, script molly_the_poly, script moln, script monitor, script monomaniac, script moonraker, script mosaic, script mouse, script mx.samples, script mx.synths, script n.kria, script nørgård, script n16o, script nameless-nightmare, script narf, script nb_drumcrow, script nb_mxsynths, script nb_plyprc, script nb_smpKit, script nc01-drone, script nc02-rs, script nc03-ds, script ndls, script nice-tapes, script nisp, script nmMelodyMagic, script nmQuadroDubber, script nmRain, script nmSmartyPants, script noize, script noizeop, script norman, script norns.online, script nornsfetch, script nydl, script o-o-o, script oblique, script oilcan, script onehanded, script ong, script oooooo, script orbital, script orca, script orgn, script orgnwrms, script ortf, script otis, script overtones, script overwintering, script p8, script paracosms, script paranibbles, script parrot, script passersby, script passthrough, script patchwork, script path-trace, script pedalboard, script phonotype, script phyllis, script pirate-radio, script pit-orchisstra, script pitfalls, script pitter-patter, script piwip, script pixels, script plasma, script plonky, script pools, script ppm_norns, script punchcard, script qfwfq, script quence, script r, script rachim, script raft, script raindrops, script randomizer_typhon, script rangl, script rebound, script reels, script repeater, script repl-looper, script ribbons, script rpls, script rpmate, script rudiments, script sam, script sampswap, script samsara, script samthree, script sath-lemon, script schicksalslied, script scholastic, script scryingstone, script seaflex, script seeker_ii, script sempra, script serialism, script shapes, script shfts, script shnthsalslied, script showers, script sidvagn, script silos, script sines, script skylines, script smash, script sonde, script spirals, script splicer, script splnkr, script stack, script step, script stjörnuíþrótt, script streams, script strides, script strum, script stwnsh, script SuperBrain, script supertonic, script sway, script sweet bees, script synthy, script takt, script tambla, script tapedeck, script taweeet, script tetra, script tetrabobo, script tetrabotis, script thebangs, script thirtythree, script thorns, script Tidbit, script timber, script time-rhythm, script timeparty, script tmi, script torii, script traffic, script triangles, script tulpamancer, script tuner, script tunnels, script turntable, script tviburar, script twine, script twins, script u, script ufo, script uhf, script vcr, script vinker, script warmreload, script waver, script window-crowparator, script wobblewobble, script wrms, script xD1, script Ygg, script yggdrasil, script zellen, script zxcvbn.
Frequently asked questions
Can an AI agent like Claude control the Monome norns?
Yes: SynthHub's hosted MCP server knows the Monome norns's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.