M-PYRE1.0.3

M-PYRE 1.0.3

• Newer FM-1s supported: units sold since autumn 2026 (mostly via AliExpress) have a different flash chip (UC25HQ80, JEDEC 0xB36014). M-PYRE took it for an unknown part: projects stayed in RAM and the update loader refused to install. The app, the USB rescue and the update loader now know both chips (as SLOOP 2.8.5).
• Its own identity: M-PYRE reports itself as FM-1_123 (was Felucca's FM-1_900), so it is listed on its own on The Firmware Hub and updates keep the Install button. Nothing changes for your projects or samples.

M-PYRE 1.0.2

• Chords hold: the FM-1 lets voices go under load later than before (three short overloads in a row over 92 %, was two over 85 %), and the drums need far less: a sound hit again takes over its own voice (a crash struck again ends the one before, as on a kit) - about 40 % less for the drums in the tests. A held power chord keeps its fifth.
• Recording guitar and bass: a note played again over an earlier pass replaces it there (notes held together still make a chord), instead of piling up; a note the pattern just started is taken over by your key - one attack, not two, and the step's end no longer cuts the note you hold.

M-PYRE 1.0.1

• No more lost notes under load: when the FM-1 runs short of time it lets voices go, as before, but never one just struck (the last ~0.15 s): a chord's notes and a key pressed always sound; ringing tails go first.
• Guitars and basses ring on in four notes at most: the next one damps the oldest, as a hand on the strings does (fewer voices at once, less load).
• Recording in time: a key's press is timed when it happens, and the recording places the hit where it was played, also when the FM-1 is busy (fast kicks no longer slip a step).
• The installer writes the sound pack right after the firmware, when the FM-1 does not have it yet (it asks before replacing other samples in USR1 to USR4).
• The installer page links History Of Sky's songs on Spotify and Instagram.

M-PYRE 1.0

The first release of M-PYRE, a riffbox firmware for rock and metal on the M-VAVE FM-1. It is based on SLOOP 2.8.1 by isod89, which is based on Felucca by Leo Kuroshita / Hügelton Instruments. Everything SLOOP 2.8.1 has that is not listed below works as it does there (see reference/sloop/ for SLOOP's own documentation).

• Real guitars and bass. History Of Sky's own DI guitar (11 notes, A1 to A5), palm mutes (8 notes) and a picked bass (8 notes, B0 to C4). They are tuned and looped, and stored in the sound pack: the editor writes it into the four user sample slots.
• Guitar presets: CLEAN GTR, CRUNCH GTR, HI-GAIN, DJENT GTR, LEAD GTR, PALM MUTE, DI GUITAR. The rhythm guitars sit an octave down and the lead at pitch.
• Bass presets: PICK BASS, DRIVE BASS, HEAVY BASS, an octave below the guitars.
• Synths for rock: MOOG FUZZ, MOOG BASS, MOOG LEAD, LADDER PAD and the rest of the HYBRID voice (from Clipper by 3dSam), next to ANALOG, DIGITAL, PHASE, LOFI, TRIO, DRAWBAR and FM6. FORMANT, GRAIN, PHYS and NOISE were removed to make room.
• HEAVY KIT: a fully editable kit based on realistic drum samples (kick, snare, ghost, hi-hats, ride and bell, three toms, two crashes, china), with four shadings (DEEP, TIGHT, BRIGHT, DUST). The synthesised kits 808, 909, 606, 80S, VINTAGE, TRAP and INDUSTR stay.
• Drum lanes for rock: PEDAL hi-hat, RIDE and BELL, three toms, CRASH, CRASH 2, CHINA, REV CRASH, DROP.
• Five amps: CLEAN, CRNCH, HIGH, LEAD and BASS, each drawn on the screen as its own amp. GAIN, BASS, MID and TREB on the panel; AMP, CAB, PRES and COMP above it.
• HIGH and LEAD voiced on the band's own guitar: fitted to History Of Sky's DI and the same DI through their amp and cabinet: a tighter low end, mids that cut through, the highs as recorded, and the cabinet at the full sample rate.
• Cabinets: the band's own impulse responses for clean, crunch, high-gain, lead and bass.
• Doubled rhythm guitars: with the CLEAN, CRNCH and HIGH amps the guitar plays left and right, the right side a second take a little later. GTR DOUBLE (menu > SEQ) switches it off.
• The FX as a pedalboard. The first FX page is the overview of the four mixes (DST, MOD, DLY, REV). Then come four pedal pages, each drawn as its pedal:
• PEDAL: BOOST, OD, DIST and FUZZ (DRIVE, TONE, LEVEL), and OCT (OCT+, OCT-, LEVEL)
• MOD: PHASR, FLANG, CHOR and TREM (RATE, DEPTH, MIX)
• DELAY: TIME, FDBK, TONE, MIX
• REVERB: TYPE (ROOM, HALL, PLATE, SPRIN, CLOUD), SIZE, TONE, MIX
• Mixes that mix: at 50 % the effect is as loud as the dry sound, at 100 % only the effect is heard.
• Delay and reverb start OFF: the leftmost knob of each (TIME, TYPE) switches it on.
• Wah, whammy, volume pedal and compressor on every guitar and bass track.
• Both cores shared by load: the tracks go to the FM-1's two cores so that each has about as much to do (SLOOP always gave the second core the third track and the drums); the full-rate cabinets cost a quarter of before.
• The LIVE view (tap HOME): three groups of four controls, tap HOME again for the next.
• SOUND (synths only): CUT, RES, ATK, REL
• PLAY: CHORD, BEND, VIB, PALM
• PLAY 2: LEG, WHAM, WAH, PVOL
• Chords for guitar: PW (power chord), PW+, OCT and TERZ.
• BEND in steps: a turn right bends a semitone, a strong turn a whole tone, any turn left lets go.
• Arpeggios on guitar and bass ring to the next note (the ARP's GATE at 100 % in their presets).
• CHORD NAME (menu > SCREEN, off by default): the LIVE view names the chord or note being played, in large type over the scope.
• Palm mutes, slides and accents per step: the note sheet's ART row (NORM, PALM, SLIDE, HAMMR), and FORCE goes on past ACC to PALM.
• Drum sound editor: EDIT on the drum track shows the kit. Each sound has LEVEL, PUNCH (a softer or harder attack), PITCH and DECAY, and they are kept with the project. The drums' LIVE view draws the whole kit as it plays, with LEVEL, PUNCH, LO CUT and HI CUT for the kit.
• HOME: tap for the LIVE view, hold for the TRACKS screen. The menu moved to GLO held for about 1.2 seconds.
• New screen design: the Barlow Condensed font, a header with the tempo and the page's place, a 2 x 2 layout of the values, ember gauges and slanted track tiles.
• Palettes: EMBER (the default, nearly black with fire colours), AMBER, RED, MONO and LIGHT.
• Boot logo: History Of Sky's artwork, shown for about three seconds.
• The amp, pedal and kit views are drawn on the screen.
• Installer, editor and web app renamed to M-PYRE. The editor installs the sound pack (Sound pack > Install sound pack).
• The editor in M-PYRE's look (the EMBER colours and Barlow Condensed, like the installer), and with M-PYRE's pages: the Sound page shows AMP and AMP 2, PLAY and PLAY 2 (the LIVE view's controls), and the pedalboard, as on the FM-1.
• The video: the installer page plays M-PYRE's promo video (assets/mpyre/video/).
• USB name: the FM-1 shows up as "M-PYRE" by "History Of Sky" on a computer. The installer and the editor still find it under its old names.
• Browser emulator (tools/build_emu.py, web/emu.html): the firmware running in a web page, for trying songs and sounds without the FM-1.
• Eight demo songs, rock to doom (tools/demo_songs.py), as projects and renders.
• The full-screen visualiser, SLOOP's DIST effect, the INSERT 2 and CHORUS pages, the FILTER and SLICER pages on sample tracks, the HORNS, FLUTE and SCRCH sample sets.
• M-PYRE saves projects in its own format (MPY1). Projects saved by SLOOP 2.6 to 2.8 are not opened; projects of older SLOOP versions are converted when loaded. Save a backup with the editor before you install.

CHANGELOG.md on GitHub ↗