Mutable Dreams 1.2 — Shaped by listening

Warmer voices, more personal sequences, and an interface that grows with your music. Thank you to everyone whose listening, patches and feedback shaped this update.

What changed

• Refined FM, VA and resonant voices; more carefully balanced tones and Biomes; smoother shared granular processing and mixable filtered Air noise.
• Three new sound families: Velvet Keys, Spectral Bloom and Breath Texture. Six assignable tracks, 15 engines, 288 tones and 92 musical Biomes plus Blank.
• Up to 32 steps per track, note/rest, velocity, gate and probability; four phrase generators, keyboard/USB-MIDI step entry and monophonic live recording.
• Four chord journeys with selectable pace and participating tracks.
• Clearer antialiased text and organic backgrounds that respond to settings. Contextual held-button help remains available.
• Updated playable browser instrument and bidirectional USB editor, with separate browser/device User Banks, live JSON export and .mddb backup/restore.

Play, edit, install and read the guide · Watch the update

Update and recovery

Back up saved banks as .mddb and unsaved edits as JSON before updating. Read Recovery-1.2.txt. Stock V15 round trip, saved-bank restore and cold start were tested. For 1.0, use the documented legacy route through 1.1. Returning to V15 erases user data; full restore requires physical SEL confirmation. Keep original backups for downgrades.

Validation and limits

The exact device build passed 29 controlled FM-1 cases / 31 assertions without xruns, overloads, nonfinite audio, dropped buffers or capture faults. Dense combinations may require ECO. USB MIDI is tested; physical TRS-MIDI cable testing remains outstanding. See DEVICE-TEST-REPORT-1.2.txt for scope.

Firmware identity: FM-1_710010200
SHA-256: 828891e0f506d6a07ee0c6fa844e54207985c464e0f2d9cbb423e73ae522f7fb

The complete corresponding source is directly browsable in the repository and supplied as a separate source archive with an 830-file manifest. The approved device binary was not rebuilt for release packaging. Published 1.0 and 1.1 tags and assets remain unchanged.

With gratitude to Émilie Gillet, Mutable Instruments and the FM-1 open-source community. Independent project; selected algorithms, not complete ports of every module. Combined distribution GPL-3.0-only, original component licences retained.

Mutable Dreams 1.1

Thank you for the music, questions and feedback that shaped this update.

Play, edit and install · Watch the English walkthrough

Illustrated English guide and browser addendum

Read the 23-page PDF user guide · Manual on the website

Step-by-step FM-1 and browser instructions, screenshots, all 19 pages, warmer sound design, phrases, User Banks, MIDI, backups, direct 1.0 updates and return to V15. The PDF is also attached below.

Browser packaging correction (25 October 2026): use the current website or the supplemental Mutable-Dreams-1.1-Browser.html below instead of the HTML in the original offline ZIP. The original page contained unexpanded template markers; the corrected page embeds the existing 1.1 engine/support scripts and improves editor contrast. Device firmware, source archive, existing release files and v1.0 are unchanged. No reflash is required for this website/documentation update. See Documentation-Update.txt and SHA256-Documentation.txt for details.

Warmer worlds, your own Biomes

25 October 2026

Thank you for the recordings, questions and generous feedback that shaped this
update. Mutable Dreams remains a free, independent community instrument for
the M-VAVE FM-1, with deep gratitude to Émilie Gillet and Mutable Instruments.

What is new since 1.0

• Twelve engines across six freely assignable tracks. New Round Bass,
  Elements Strike, Mellow Drift and Satin Morph expand the original palette.
• 224 factory tones and 76 musical Biomes plus Blank. New soft, warm starting
  points include Mellow Canopy, Satin River and Velour Dawn.
• Global mixer with levels and granular, delay and room sends. Shared effects
  bring melodic voices, bass and percussion into the same space.
• Bassline modes, glide and editable 16-step phrases with notes, rests,
  track-level accent and probability. Independent STEP mode does not use Euclidean gates.
• Sixteen named User Biomes and sixty-four User Sound slots, with overwrite
  confirmation. Save while stopped and using the internal clock.
• Original Marbles-inspired remembered variation, Tides-inspired cyclic
  modulation and Warps-inspired ring blending. These are not full module ports.
• USB and TRS MIDI input and external clock support. USB was tested; the
  physical TRS connector still needs a cable test. No MPE, MIDI output or
  live MIDI recording is claimed.
• Live bidirectional browser editor, live-patch JSON import/export and complete
  .mddb saved-bank backup/restore. Full bank restore requires physical SEL.
• Nineteen device pages, organic animated backgrounds, leaf-shaped controls,
  clearer headings and contextual held-button help.
• Audio scheduling and DSP block optimizations, storage/transfer safeguards,
  granular checks across Grain Size 19/20/21 and higher values, and the Density
  slider synchronization fix.

Update and recovery

Direct update from the published Mutable Dreams 1.0 is supported and tested
on the exact 1.1 release file. You do not need to visit Stock V15 first.
Original Stock V15 installation and return are documented. Read Recovery-1.1.txt
and use the backup procedure for your current version: 1.0 does not have the
new full-bank .mddb protocol. Returning to V15 erases 1.1 User Banks/preferences.
On 1.1 keep BOTH .mddb for saved data and JSON for any unsaved live edits.
The published v1.0 release, firmware files and tag remain unchanged.

Qualification and limits

Exact final file: 8e039bb0e9681fbbb0504e9b7d251895958fd88ae97f11ff0342b4aef38143d2
USB identity: FM-1_710010100. Firmware size: 610136 bytes.
Measured final-build dense playback tests peaked at 84.67% and 79.60% of the
callback budget, with zero NEW audio faults in those windows. A stopped flash
restoration produced one separately recorded timing event; saving is not an
uninterrupted playback operation. Full V15 roundtrip/cold-start/longer stress
evidence belongs to the functional predecessor with identical DSP, platform
and update loader. See DEVICE-TEST-REPORT.txt for exact scope. The owner's
visible browser tests include import and restore; no automated browser GUI
test is claimed. Not every possible six-track patch has been exhaustively
tested. The second CPU core stays disabled; no unlimited polyphony claim.

Source and credits

Complete corresponding source, build instructions, tests and component notices
are supplied in Mutable-Dreams-1.1-Source.zip. The combined distribution is
GPL-3.0-only; original MIT/MPL-2.0 and font notices remain intact. Selected
original Plaits, Rings and Elements algorithms are used. Custom granular,
Choir, Round Bass and Satin designs belong to Mutable Dreams. Independent and
unaffiliated with Mutable Instruments or M-VAVE; no official endorsement.

Downloads

• Mutable-Dreams-1.1-Release.zip: original offline bundle; use the supplemental Browser.html above for the corrected browser instrument. Firmware, installer, film and source are retained.
• Mutable-Dreams-1.1.0.fwsc: exact tested firmware.
• Mutable-Dreams-1.1-Source.zip: complete corresponding source and build instructions; extract this named archive to build the firmware.
• Mutable-Dreams-1.1-Installer-Kit.zip: alternate Python USB updater.
• Recovery-1.1.txt and DEVICE-TEST-REPORT.txt: backup, update, return and exact qualification scope.
• SHA256SUMS.txt: fingerprints of the files inside the full release bundle.

The v1.0 tag and its release assets are unchanged.

Mutable Dreams 1.0

Six voices. Small worlds, endlessly unfolding.

The first public Mutable Dreams release brings generative ambient music,
rhythms and a custom granular cloud to the M-VAVE FM-1 and your browser.

64 editable Biomes plus Blank. 128 sound presets. Eight sound engines.
Every track freely assignable. Per-track filters and envelopes, Euclidean
patterns, swing, probability, accents, shared scales and four live macros.
Held-button help, an animated display and an optional startup sound.

The browser instrument runs the actual firmware engine. Edit all six
voices, play the keyboard, and export/import your own patch files.

Downloads

• Mutable-Dreams-Release.zip: offline instrument/editor, firmware,
  tutorial, subtitles, guides, measured validation and source archive.
• Mutable-Dreams-1.0.fwsc: FM-1 firmware; identity FM-1_710010000.
• Mutable-Dreams-Source.zip: complete credited source and test evidence.
• Mutable-Dreams-Installer-Kit.zip: Python USB updater alternative.
• Mutable-Dreams-SHA256.txt: file fingerprints.

The release website includes the USB browser installer, installation from
original V15, future updates and a checked return to M-VAVE V15.
Read the Recovery Guide and back up your own work before flashing.

With gratitude to Émilie Gillet and Mutable Instruments. Selected original
Plaits and Rings algorithms retain their MIT credits. Our granular bus
and Choir are custom designs. fm1-base / felucca-bsp: MPL-2.0.
This independent project is unaffiliated with Mutable Instruments or M-VAVE.

Validation scope and practical limits are described in the accompanying
Validation report. The exact 1.0 release passed the physical-device suite, ten-minute soak,
saved-state persistence, and the original-V15 return/reinstall test.

Play, edit, install and explore: https://mutable-dreams.sugarypixie10.chatgpt.site

Additional GPL-3.0 distribution

For source mirroring, use Mutable-Dreams-1.0-GPL-Source.zip. It contains the complete corresponding source, build instructions, tests and component notices. The combined application is additionally offered under GPL-3.0-only; original MIT and MPL-2.0 rights and notices are retained. See Mutable-Dreams-1.0-GPL-Notice.txt and COPYING-GPL-3.0.txt for scope and component details, including separately packaged vendor boot/configuration files.

This is a licensing/source addition, not a firmware update. All original 1.0 assets and the v1.0 tag remain unchanged. Firmware SHA-256: 75008881683cbeb3515e24cfd7830136b90eb293f0752dc66b203b7f2ee7cd9f. GPL-source SHA-256: 48a28ff9fc3dfa118e7dd36ae021693686afed7973ec475feb3444ef9ba192e6. Additional asset fingerprints are in Mutable-Dreams-GPL-SHA256.txt.

GitHub’s automatic source download contains this distribution repository; use the named GPL source archive for the full source tree. No GitHub Actions “Built from source” badge is claimed.

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