MC-1

Open-source groovebox / Experimental 0.3.0

MC-1

Four parts.
Your next groove.

Acid lines, recorded instruments and punchy drums. Build a pattern, play a chord, turn a knob. Keep the moment.

Play the web emulator Hear MC-1

Original firmware for the M-VAVE FM-1.
Explore its shared C engine in your browser today.

Actual MC-1 display playing ACID SAW: four pattern rows, orange notes, green active steps and four sound controls.
Actual shared C display240 × 240 pixels
Melodic sounds
128
Drum kits
08
Sequencer parts
04
Patterns × steps
64 × 16

01 / Sound palette

From the first note
to the last kick.

Three melodic parts combine LA-inspired synthesis, a 303-inspired engine and real instrument recordings. A fourth part brings 16 lanes of synthesized drums.

The seven-row PRESETS list with CONTRABASS ROUND selected in orange, number 8 of 128.
Turn PRESETS. Hear the sound immediately.

64 recorded-instrument presets.
16 real recordings.

Piano, organ, mallets, harp, strings, woodwinds and brass sit alongside 64 original synthesis patches. Fourteen sound families keep all 128 presets easy to browse.

The recorded sounds use CC0 samples from VSCO 2 Community Edition. Their default mix is sample-only; lower PCM mix to blend in the oscillator.

Browse the complete sound list ↗
Actual drum pattern display with orange hits and a green active playback column.
Sixteen lanes. Eight distinct kit recipes.

Choose your kit

BASE 808 / CLUB 909 / TIGHT 606 / VINTAGE / HOUSE / BREAK JUNGLE / IRON WORKS / ELECTRO LATIN

Press play / Actual engine audio

NEON SPIRAL

A 32-bar journey through pattern changes, mutes and filter sweeps, with the original effects chain.

Rendered by the native host engine. This is an original MC-1 demo, not a recording from an FM-1 or Roland device.

MC-1 — NEON SPIRAL with FX

Download the 320 kbps MP3 ↓

No autoplay. Playback starts when you choose.

02 / Shape the space

Fifteen ways to color it.
Every track. The master, too.

Independent delay, reverb, drive and modulation, plus high-pass and low-pass filters. Press FX to move between the selected track and master.

Track effects AMOUNTS page showing DELAY, REVERB, DRIVE and MOD controls.
01 — Set the amount
Track effects TYPES page showing the chosen delay, reverb, drive and modulation algorithms.
02 — Choose the character
Track effects FILTERS page with independent high-pass and low-pass controls.
03 — Carve out the space
Delay / 4
Digital · Tape · Pingpong · Multitap
Reverb / 4
Room · Hall · Plate · Spring
Drive / 4
Soft · Hard · Fold · Fuzz
Modulation / 3
Chorus · Phaser · Flanger

03 / Play it. Capture it.

Give the pattern
a performance.

Arpeggiator set to UP-DOWN, sixteenth notes, three octaves, 75 percent gate and latch enabled in green.
Held chords become moving phrases.

Six arpeggiator modes

Up, Down, Up-Down, Order, Random and Chord. Set rate, octave range and gate, then latch the phrase. PLAY + REC writes the generated notes into the sequencer.

KNOB AUTOMATION display showing the full 384-event project capacity and the current pattern count.
Sound, mixer and FX movement stays with the project.

384 automation events

Turn a sound, level or FX knob during PLAY + REC to record its value at the current step. Refine an existing move or clear just the current pattern's automation.

04 / Stay in the groove

Small screen.
Direct decisions.

Orange shows the selection. Bright green follows playback. Slow turns stay precise; quick turns move through larger ranges faster.

NEON SPIRAL demo sound retaining its source preset name on the home display.
Know where your sound started.
An edited sound showing its original preset name with an asterisk.
An asterisk marks your edits, even after saving.
Master FILTERS display with high-pass and low-pass controls.
Switch from one track to the whole mix.
Actual SONG EDIT display at position 128 of 128, pattern 64, sixteen repeats and loop enabled, with separate position, pattern, repeat and length knobs.
128 song positions. See the current pattern and the next bar.
GLOBAL MIDI display showing Internal clock, stopped transport, USB and TRS receive counters, four track channel controls and BLE unavailable.
Four MIDI channels. Internal, USB or TRS clock.
PRESETS
Pick a melodic sound or drum kit. The large list closes after 500 ms of idle time.
ALGORITHM
Select one of 64 patterns on any part; queue the next pattern while playing.
SEQ → EDIT
Switch Pattern / Song mode. In Song, browse positions with knob 1; EDIT unlocks pattern, repeats and length; LFO toggles looping. Arrange up to 128 positions with 1–16 repeats each.
ENV
On a melodic sound, edit attack, decay, sustain and release. In FX, cycle the effects pages.
FX → ENV
Open track effects, press FX again for master, then use ENV for amounts, types or filters.
ARP → LFO
Open the melodic arpeggiator and toggle latch. In GLOBAL MIXER, ARP mutes the selected part.
GLO
Cycle through Global Mixer, Groove, Demo, Knob Automation and MIDI. MIDI knobs set four track channels; LFO selects Internal, USB or TRS clock. BLE hardware support is unavailable.
PLAY + REC
Capture notes and parameter changes. Save the project to keep the performance.
More actual display views
The arpeggiator page with mode set to OFF.
ARP off — ordinary live playing.
Automation page after clearing the current pattern's recorded knob movements.
Clear one pattern while retaining the rest.

Open source / Open the instrument

Make something
with MC-1.

The web emulator runs the shared C engine and display. Try the sounds, build a pattern and save your project.

Play the web emulator ↗