Momentium Creative SuiteOne of four creative products

StemDeck Online / SATTARI STUDIO

StemDeck

Perform it. Arrange it. Make it yours.

Mix decks, arrange audio and MIDI, explore built-in effects and keep a portable session in the current studio on Sattari.

Current web app: StemDeck Online at sattarimusic.com/studio. Fresh screenshots from a populated library, a stem session and a multitrack edit.

Foolish Game loaded in the current Sattari studio, with vocals, drums, bass and music available independently.
One song. Four parts to shape. Foolish Game loaded in the current Sattari studio, with vocals, drums, bass and music available independently. View the full workspace ↗

STEMDECK / LEARN BY MAKING

A real studio.
A new skill in every session.

Open a prepared project inside the actual StemDeck editor from Sattari. Make a change, hear the difference, and keep your own remix.

Four prepared stems. Instant mixing. No account required. Use the editor’s Save project to keep your edits.

More starter examples
Explore the complete feature reference

INSIDE STEMDECK

What StemDeck can do.

Mix, arrange, perform and capture in StemDeck Online on Sattari.

33features to explore

StemDeck Online · perform and mix

5 features
  • Current Sattari studio

    online

    Open the current studio at sattarimusic.com/studio, with Library, Perform, Arrange and Mixer views.

  • Decks and existing stems

    online

    Import audio, control deck levels and work with available full-mix, drums, bass, music and vocal lanes. Existing stem controls are separate from AI separation.

  • Crossfader and deck grouping

    online

    Blend the A/C and B/D groups with selectable response curves.

  • Performance pads and global effects

    online

    Play one-shot pads and shape the performance with Echo and Space controls.

  • Master output and stem buses

    online

    Review output metering and control the master vocals, drums, bass, other and full-mix groups.

StemDeck Online · arrange and create

5 features
  • Multitrack arrangement

    online

    Import audio, add tracks, copy deck audio into the arrangement and edit clips against the timeline grid.

  • MIDI and instruments

    online

    Add an instrument, work in the piano roll or beat sequencer, import MIDI and connect supported MIDI input.

  • Built-in effects racks

    online

    Add the browser editions of Sattari EQ, Comp, Echo, Space, Heat and Image. Native plugin hosting is a separate runtime.

  • Loop regions and locators

    online

    Set loop start and end, loop a selected clip and mark positions with locators.

  • Track automation

    online

    Shape supported track parameters over the course of an arrangement.

StemDeck Online · capture and continue

4 features
  • Input and capture

    online

    Choose a microphone or interface, arm an input lane and use the available multitrack or WAV capture controls.

  • Mixdown and track stems

    online

    Export an arrangement mixdown or pre-master track stems with selectable range and filename. These track exports do not perform AI separation.

  • Portable project backup

    online

    Save a .sattari project containing supported session settings and its source audio, then reopen it in the studio.

  • Local session continuity

    online

    Keep audio and session work on the current device, with recoverable takes and portable backups for handoff.

Native & legacy editions · Load, cue & mix

7 features
  • Four-deck mixing

    legacy companion

    Load tracks into decks A–D.

    Try this in an example
  • Waveforms and transport

    legacy companion

    Inspect audio, play, stop, cue, rewind, and loop supported material.

  • Stem lanes

    native

    Control full mix, drums, bass, music, and vocals within a shared deck transport.

  • Optional stem separation

    native/experimental

    Use a configured local separator, with cached results and processing status.

  • Deck mixing

    native

    Gain trim, channel faders, three-band EQ, and filters.

  • Crossfader

    legacy companion

    Blend deck groups using an equal-power curve; grouping differs between editions.

    Try this in an example
  • Master controls

    native

    Master gain and a safety limiter.

Native & legacy editions · Tempo, beat & key

4 features
  • Tempo controls

    native

    Editable source BPM and supported host-tempo synchronization.

  • Beat alignment

    native/alpha

    Host-grid synchronization and per-deck beat offsets.

  • Key analysis

    native/alpha

    Track-level key estimates and optional live-window analysis.

  • Pitch and key matching

    native/alpha

    Manual pitch changes, target keys, and an internal key-preserving playback path.

Native & legacy editions · Perform & capture

5 features
  • Performance pads

    native

    Eight loadable one-shot pads with focused-window keyboard triggering.

  • Microphone/input

    native

    Input monitoring and gain controls.

  • Effects hosting

    native/experimental

    Sattari plugin-chain groundwork for decks, microphone, and master processing.

  • Performance recording

    native

    Record the performed master output to WAV.

  • Arrangement capture

    native/alpha

    Export event/arrangement information for reviewing a recorded session.

Native & legacy editions · Recall & browser mixing

3 features
  • Session recall

    native

    Preserve supported settings and deck/pad file references.

  • Quick mix export

    legacy companion

    Render a 1–60-second stereo WAV from current cue points, levels, loops, and crossfade.

    Try this in an example
  • Local browser workflow

    legacy companion

    Load your own audio or original demo studies without uploading the audio.

    Try this in an example

The native performance workspace.

Preview of the Mac app under development. Native stem separation, plugins and Replay are separate from the browser mixer above.

StemDeck · Live Set
StemDeck live performance workspace showing four decks, vertical stem waveforms, project sync and recordingVertical stem controlProject BPM + key syncEvery move enters Replay
Explore real browser workflows ↓
●Four performance decks●Editable replay●Live stems●Retrospective capture●Isolated plug-ins●MIDI + live inputs●Region take comping●Four performance decks●Editable replay●Live stems●Retrospective capture●Isolated plug-ins●MIDI + live inputs●Region take comping
One instrument, three modes

The room, the library and the session stay connected.

Move through a set without losing context. Prepare music, perform it, then open the exact performance in Replay.

StemDeck Perform workspace
Perform · decks, stems, inputs and recording
The performance becomes the project

A real arrangement—not just a stereo recording.

StemDeck preserves clean sources, the audible master and the control timeline. Refine the energy of the room without rebuilding the set from scratch.

  • Razor, trim, move, fade and overlap clips
  • Comp exact regions between performance takes
  • Edit captured mixer and effect automation
  • Warp timing with persistent musical anchors
  • Bounce edits or export the finished master
Built for live creativity

Power where you need it. Calm everywhere else.

Deep enough for a finished set, direct enough to use while people are watching.

4×

Music-aware decks

Project tempo and key, downbeat sync, draggable warp anchors, quantized loops, cues and beat jumps.

Tempo + harmonic sync
ST

Touch every stem

Split vocals, drums, bass and music. Mute, pitch, filter or effect one stem without leaving the deck.

Vertical stem workflow
FX

Crash-contained effects

Route effects to master, channels or individual stems. Third-party audio effects run in an isolated helper.

Automatic dry fallback
60

Never miss the moment

Always-on retrospective capture saves the previous 60 seconds even when Record was never pressed.

Bounded audio history
M

Play instruments too

Connect MIDI, guitar, microphone and line inputs. Load software instruments and print safety lanes.

Live inputs + MIDI mapping
↗

Accurate Replay

Every fader, cue, effect and transport gesture returns on the same clock beside clean and printed audio.

Sample-identical intent replay
LB

A library that listens

Add whole folders, preview audio, analyze BPM and key, then arrange by compatibility or readiness.

Persistent smart library
SC

Performance scenes

Capture complete live states and recall them at one touch. Carry controller mappings between sessions.

Four instant scene slots
PK

Portable projects

Package state, sources, manifests, diagnostics and captures so the set can move safely between Macs.

Export Center preflight
FX
ROUTER
Effects without guesswork

Choose what you’re affecting before you touch the effect.

Master, channel and stem routing use the same clear target model. The rack always tells you where the next effect will land.

Put a filter, delay or performance effect across the complete mix.
Native development snapshots · not release qualification

“A live tool has one job before everything else: keep making sound.”StemDeck engineering principle

0audio-thread allocations in the RT gate
58/58live controls captured and replayed
3,000stress blocks without invalid audio
Dryfallback when an isolated FX helper exits
Browser testing

Take the mix
for a spin.

Mix four decks, arrange audio and MIDI, shape sounds with built-in effects and save a portable session in the current Sattari studio.

Open StemDeck Online →

Native plugin hosting and AI separation are separate from the online studio.