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Compás, image 1 from its README
Firmware

Compás

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Compás rhythm section firmware for the M-VAVE FM-1

Compás is custom firmware for the M-VAVE FM-1, by @TexasRADIO. Open source under GPL-3.0, latest release compas-v1.1 (November 2026), 1 star on GitHub.

forM-VAVE FM-1·by@TexasRADIO

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Download compas-v1.1

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GPL-3.0· TexasRADIO/compas-firmware·thebigbeat.app/compas/·downloads come from the creator’s GitHub releases

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  1. compas-v1.1Compás 1.1Latest3 files

    Compás 1.1 · Kumbia Kit

    Que suene el grupo. Now with a fifth page.

    New: KUMBIA

    Four sounds and four patterns from the Hanan Cumbia drum machine by Oficina de Sonido: bombo, güiro, campana and conga, with the factory White, Yellow, Red and Green patterns. At the home settings it is the Hanan exactly. Then you can push it further than the original goes.

    1. SELECT → KUMBIA. Press PLAY to start the kit at 90 BPM.

    2. Keys 1–4 play bombo, güiro, campana and conga. Keys 5–8 (or PRESETS) cue the four patterns; a cue lands on the next four-beat boundary.

    3. FX switches Off, Layer and Drums Only. Layer plays the kit over any Compás groove, and the groove's accents hit the drive harder.

    4. The knobs (English / Español):

      KnobControlHome
      K1DRIVE / SATURA0
      K2DECAY / CAÍDA100 %
      K3PITCH / AFINA0
      K4CLOCK / RELOJ9,804 Hz

      CLOCK changes the kit's sample clock, not the tempo.

    The settings belong to the kit. On the FM-1 they reset at power-off, as set lists do.

    Also

    • The 727 sound bank is the author's own recordings. The source files now say so.

    Install

    The same as 1.0: thebigbeat.app/compas/install/, Chrome or Edge, a USB data cable, one click. English and Español builds.

    Credits

    Kumbia Kit sounds and patterns: Hanan Cumbia by Oficina de Sonido (build hanan26Taller), based on Bleep Labs' Bleep Drum, used under CC BY-SA 3.0. Compás is free software under the GNU GPL v3.

  2. compas-v1.0Compás 1.03 files

    Compás 1.0

    Compás: que suene el grupo.

    Compás turns the M-VAVE FM-1 into a Latin rhythm section: cumbia, salsa, merengue and bolero. Call the section and the band lands on the beat.

    Get it

    For a return to stock, use the matching original M-VAVE package. Stock-loader staging passed offline. The emulator did not complete the vendor-loader return.

    Inside

    1. Band. Six song parts on the center white keys, cued to the phrase with a beat countdown. ALGORITHM sets the energy: base, lift or break. Double-tap a part to land on the next bar.
    2. Bass. Ensemble lines for every style, or Acid. Tone and Bite on the knobs.
    3. Percussion. Conga, maraca, timbal and bell, each in and out on your call.
    4. 727. Fifteen sounds on the pads, 29 complete rhythms, 22 percussion parts in the step editor, live REC and roll.
    5. 29 groove studies and 28 written songs, from the Colombian coast to the Mexico City sound systems, and from La Paloma to Siboney.
    6. Rebajada. Slow the whole band down to 60 %, pitch and all.
    7. A sixteen-song set list. Cue the next song any time; it lands on the boundary. In 1.0 the set list and your 727 rhythms last until you power off; saving them on the FM-1 comes in an update.
    8. English or Spanish. Every screen in either language. Choose at install, or flip it live: GLO page, turn ALGORITHM.
    9. Take it away. A tribute to Johnny Canales.

    Source

    Complete corresponding source is attached to this release under the GNU GPL v3. No warranty: you install it at your own risk.