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EphemeraDIMENSIONAL
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A sister product to Ephemera

DIMENSIONAL

Compose with gravity.

A 3D cosmic sequencer where celestial bodies become voices. Position is pitch, distance is decay, and HRTF spatial audio puts every voice in your room - while gravity bends pitch as bodies orbit, collide, and fall.

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Free in browser · Desktop $19.99 · Bundled with Ephemera

bBodies0.40
gGravity0.50
hHRTF0.60
pPulse0.50
ƒField0.50

A 3D sequencer where geometry composes.

Dimensional is a cosmic sequencer that runs in your browser. You place celestial bodies in 3D space - stars, planets, quasars, black holes - and they don't sit on a timeline. They orbit, fall, and collide. Their motion is the score.

Every body is a voice. Its position is pitch, its distance is decay, its motion bends frequency through Doppler and gravitational redshift. Modules - Poles, Murmur, Braids, Tide, Resonance Membrane, RhythmCubes - let you sculpt timbre, counterpoint, and rhythm from the same scene.

Spatial audio is real, not faked. Distant voices pan in stereo; near voices switch to true HRTF so they live in your room.

Inside the instrument

Six modules. One scene.

Every module operates on the same 3D scene of celestial bodies, sharing the same harmonic field and the same spatial audio. Open the experience to install any of them.

Poles

Parametric resonators placed in the sky. They ring the scene's audio - a filter bank you perform.

Resonance Membrane

A tactile surface. Drop points - each is a resonator tuned to a chord tone. Tap or sequence them.

Tide

A moon-lit sequencer that sweeps the chord in slow, glacial arcs. Drones and ambient swells.

Murmur

A volumetric flock of voices. Density across 8 registers becomes a chord - drop wells, pulses, ridges.

Braids

A multi-strand voice engine - independent lines weave counterpoint that responds to placement in space.

RhythmCubes

Stackable rhythm cells. Build patterns by stacking, not by drawing - placed in a 3D field.

Aura

A spatial-effect zone (reverb, delay, filter) attached to a body. Hover and press E to add or cycle.

Gravitational chirp

A rising tone when two gravity-active bodies spiral together. The cosmos's own glissando.

The cast

Six kinds of body. Each a different voice.

Bodies are how you compose. Drop one, place another, hear them interact. Their type decides timbre and behavior - their position decides everything else.

Yellow Dwarf

Drone anchor

A warm sustained voice. Place one first - everything else tunes against it.

Red Giant

Singing aura

A star that sings with a spatial-effect aura attached. The aura colors whatever else sings near it.

Blue Giant

Silent processor

A spatial-effect zone that doesn't sing - it processes whatever passes through it.

Planet

Orbit pluck

Orbits the nearest star and plucks a looping pitch each revolution. Tighter orbit, faster pulse.

Black Hole

Gravity sink

Pulls audio of nearby bodies toward it - a gravitational mute and detune. Drops voices into silence as they fall in.

Quasar

Auto-pulse emitter

Fires a wavefront roughly every three seconds. Beams chain-trigger nearby bodies on contact.

How it works

Three motions. One composition.

01

Place celestial bodies

Drop voices into a 3D scene. Yellow dwarfs anchor the drone. Planets orbit and pluck. Quasars pulse. Black holes pull and detune. Each body is a sound shaped by what it is.

02

Pick a field, set a pulse

Choose a harmonic field - bodies snap to its chord. Set a beat division and pulse-mode bodies fire on the clock. Toggle emergent harmony and the chord follows your placements instead.

03

Let gravity compose

Bodies orbit, fall, and collide. Pitch bends through Doppler and gravitational redshift. Quasar wavefronts chain-trigger nearby voices. Stop touching it - the composition keeps moving.

Try it

Drag a body through the field.

Pull the planet close and gravity bends harder. Push it outward and the voice spreads into HRTF space. The scrubber bar follows because this is the same scene model.

close = gravity bendfar = spatial field

Gravity

50%

HRTF

60%

Pulse

1/4

Field

50%

Open the full scene ->See desktop options

FAQ

Questions, answered.

See all 16 →

A 3D cosmic sequencer. You place celestial bodies in space and they orbit, resonate, and sing. Position is pitch, distance is decay, orbit is rhythm. Free in browser; $19.99 for the desktop app.

“Composed, not generated. Performed,not prompted.”

The Dimensional position

Try it first, own it later

One sequencer, three doors.

Free Web

$0

The full cosmic sequencer in your browser. Drop bodies, shape gravity, and share compositions by link. No install.

Launch in browser →

Desktop

$19.99

Native app. Offline projects, local files, audio + MIDI export, VST3 hosting, multi-window, lifetime updates.

Get the desktop app →

Ephemera Bundle

Included

Already an Ephemera Premium owner? Dimensional is part of the bundle, alongside the wider Ephemera system.

See Ephemera →

One-time purchase · 30-day refund · No subscriptions, ever

Build a room that composes back.

place / orbit / listen

Free in your browser, no account. Open the scene, drop a few bodies, and hear geometry become rhythm, pitch, and space.

Launch in browser ->