Description
Spira – Orbital MIDI Generator
Music in Orbit
Turn orbital motion into evolving melodies, hypnotic arpeggios, and complex polyrhythms — perfectly synced with your DAW.
Spira by PlayMode Audio is a generative MIDI instrument that transforms a moving planetary system into music.
Up to 48 planets orbit around a central star, each moving at its own speed. Every time a planet crosses one of up to 8 beams, it triggers a note. The result is an ever-evolving stream of melodies, arpeggios, rhythmic patterns, and polyrhythms that can stay tightly synchronized with your DAW or continuously drift into new musical territory.
From ambient soundscapes and cinematic textures to electronic sequences and experimental rhythms, Spira turns a few simple controls into an endless source of musical ideas.
Create Patterns That Evolve
Choose from 34 scales and chord sets, explore 6 built-in chord progressions, move the beams around the orbital field, and change the speed and behavior of the planets.
Activate LOCKSTEP and your planets return to alignment at the end of each cycle, creating evolving patterns that always come back home.
Turn LOCKSTEP off and the planets are free to drift, producing patterns that can continue evolving without repeating in exactly the same way.
Hit SUPERNOVA whenever you want inspiration and Spira instantly generates a completely new musical universe.
Play Spira Your Way
Spira offers three ways to generate notes:
SCALE MAP
Build orbital patterns using any of the included scales, modes, and chord sets.
HELD KEYS
Hold a chord on your MIDI keyboard and Spira creates its planetary system directly from your notes.
KEY SHIFT
Play a single key to transpose the entire orbital pattern instantly.
This makes Spira equally useful as a generative composition tool, live performance instrument, or experimental MIDI sequencer.
Built-In Sound Engine + MIDI Output
Spira isn’t limited to MIDI generation.
Its onboard sound engine includes 4 timbres — CRYSTAL, COMET, BEACON, and AURA — plus COSMOS reverb and RIPPLE tempo-synced echo, so you can start creating immediately.
Every generated note is also sent through Spira’s MIDI output, allowing you to control your favorite synths, samplers, and virtual instruments.
Generate the pattern with Spira.
Send it to your favorite instrument.
Record the result as MIDI.
Then edit it however you want.
Key Features
Orbital Sequencing
Up to 48 planets move across individual orbits, triggering notes whenever they cross a beam.
Up to 8 Interactive Beams
Add, remove, and reposition beams directly on the orbital display to reshape your sequence.
Evolving Polyrhythms
Control how your universe moves with:
- ECLIPSE – cycle lengths from 1/2 bar to 16 bars
- MOMENTUM – control orbital movement
- WARP – spread the planets into increasingly complex patterns
- LOCKSTEP – choose between repeating alignment and free evolution
- GRAVITY – change the speed relationship between inner and outer planets
34 Scales & Chord Sets
Explore modes, pentatonic and world scales, Major 9, Minor 9, Sus, Quartal structures, and more.
Control the tonic, octave range, and note leap to quickly transform the harmonic character of your sequence.
6 Chord Paths
Automatically move through built-in progressions including:
- I–V–vi–IV
- vi–IV–I–V
- ii–V–IV–I
- I–vi–IV–V
- IV–V–iii–vi
- i–VI–III–VII
Includes lush maj9, m9, and add9 voicings, while DWELL controls how long each chord remains active.
Humanize & Shape Every Sequence
Use SPARK for note probability, FAINT / BRIGHT for velocity range, TAIL for note length, and HAZE for humanized timing.
DAW-Synced Generation
Spira can lock precisely to your DAW’s tempo and timeline, so returning to the same position produces the same pattern.
Switch to FREE FLIGHT when you want Spira to run independently.
MIDI Output
Send Spira’s generated notes to compatible synthesizers, samplers, and other virtual instruments.
SUPERNOVA
One click generates a completely new randomized universe — ideal when you need instant inspiration.
Live Visual Feedback
Watch planets flash as notes are triggered while the built-in mini keyboard displays the notes currently in use.
3 Color Themes
Choose between NEBULA, EMBER, and AURORA.
Preset System
Includes 20 factory presets, with support for saving, renaming, and organizing your own creations.
DAW Automation & MIDI Learn
Automate Spira’s parameters directly from your DAW and assign controls via MIDI.
Perfect For
Ambient • Cinematic • Electronic • Experimental • Generative Music • Sound Design • Arpeggios • Polyrhythms • Evolving Sequences
Whether you’re looking for a starting point for a new track or want patterns you would never program by hand, Spira turns controlled orbital motion into musical inspiration.
Technical Specifications
- Format: VST3 Instrument – 64-bit
- Platform: Windows
- MIDI Generator: Yes
- MIDI Output: Yes
- Built-In Sound Engine: Yes
- Host Tempo Sync: Yes
- Host Position Sync: Yes
- Factory Presets: 20
System Requirements
- Windows 10 or newer – 64-bit
- VST3-compatible DAW
- MIDI output to external instruments requires a DAW that supports MIDI routing from VST3 instruments
Compatible hosts include Ableton Live, FL Studio, Cubase, Studio One, REAPER, Bitwig, and other VST3-compatible DAWs.
IMPORTANT: Spira is currently available for Windows only.
What’s Included
- Spira VST3 Plugin
- 20 Factory Presets
- PDF User Manual
Put Your Music in Orbit
Create evolving melodies. Generate impossible polyrhythms. Discover patterns you wouldn’t have programmed yourself.
Set the planets in motion and let Spira take your music somewhere unexpected.

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