FM-1 firmware · 1.2
ZEN-1
A self-playing ambient window of Japanese scenes, cherry petals, koi and fireflies, where every movement is a note and the keys play along.
- Made by
- aceyprime
- Released
- October 21, 2026
- Install
- On the FM-1 Firmware Hub · source on GitHub
- Scan
- Scanned, nothing harmful found · Oct 31 What we checked
- Last checked
- October 31, 2026
What ZEN-1 does
- Three living scenes, Sakura, Koi and Hotaru, play by themselves, and every movement you see sounds a note.
- A six-operator FM engine voices each scene with koto, bell, furin, drop, mallet, pluck or warm sounds.
- Notes ride over a breathing three-voice drone in the Japanese pentatonic scales In, Yo and Min'yo.
- Sixteen white keys play notes that fit the music, while black keys do something special in each scene.
- PRESETS picks the scene, ALGORITHM the mood, SELECT how busy it gets and MASTER the volume.
- Five knob pages under FX and SEL set instrument, reverb, levels, nature beds, echo, warmth, key and scale.
- Changes save themselves about twenty seconds after you stop, and SAVE stores them straight away.
- Hold HOME for the FuMi-1 koto, which MIDI in over USB and the TRS jack plays chromatically.
Its modes
- Scene
- Set the mood, how busy the scene is, the instrument the notes play on and the reverb.
- Volume
- Balance the melody notes, the drone, the air sound and the water sound.
- Nature
- Set two settings belonging to the scene itself plus which air and water sounds play.
- Music
- Shape echo, warmth, how notes are chosen and how much the music swells and fades.
- Key
- Fix the key, scale, chord and drift for every mood and scene.
- Sakura 桜
- Watch a cherry tree drop petals on a stream, each landing petal sounding a koto note.
- Koi 鯉
- Feed koi in a garden pond, where every bite of food is a note.
- Hotaru 蛍
- Hear fireflies blink over a summer stream under a moon that follows its real path.
- The instrument (FuMi-1)
- Play the ST-50-style koto and other Japanese instruments from the keys, with tuning and ornaments.
What Les checked
ZEN-1 v1.2Scanned October 31, 2026
What we checked for
- The file is exactly the one its author published
- It's the same file we saw when this release first came out
- It opens cleanly as an FM-1 firmware, nothing damaged
- It doesn't show up on your computer as a keyboard, mouse or other input device
- It doesn't show up as a USB drive or network adapter
- Its text mentions no computer command tools, like PowerShell, Terminal or a download command
What we found
- MIDI and audio, as expected
StatusScanned, nothing harmful found
Les scans every firmware here whose file is public, and shows what it checked and what it found. A scan lowers the risk; it can't rule it out. This firmware is made by its author, not by Les or M-VAVE. Back up first, and install at your own risk. How Les scans firmware
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