RHYTM-SEC-1

Generative drums and bass for the FM-1 · after PERF-1 by deamonSLINKY

Transport & arrangement

PLAY: Start / stop (DAW playing: joins it in step; DAW stopped but its clock running: from the top on the next pulse)
SAVE: Breakdown on the next bar → press again: build → again: the drop (in a breakdown the bass holds the chord's root and the hats keep their surest hits)
FX: A fill on the next bar
SEQ: Chords move with the style (lit) / HOLD on the home chord (dim)
OCT− OCT+: Bass down / up an octave (±2)
HOME: The HOME page: kit, intensity, bass line and sound
HOME 1.5 s: Settings menu (EQ, MIDI) · on fm1-dock: the module list

Pattern

GLO: A whole new pattern, from the next bar
REC: LOCK: the pattern stops evolving (lit while locked)
keys C4–F4: New pattern for one drum, from the next bar

Patterns are drawn from each style's feel and evolve a step or two at a time (GEN page). Density and complexity add or remove hits smoothly; turning back brings the same ones back.

Encoders

SELECT: Style (changes at once; resets tempo, density, complexity, sounds)
PRESETS: Root note
ALGORITHM: DJ filter: left low-pass, right high-pass, middle off
K1–K4: The page shown at the bottom of the screen (below)

Hold SEL +

SEL+SELECT: Tempo (60–200 BPM)
SEL+PRESETS: Scale
SEL+ALGORITHM: Output: right = SPLIT (drums left, bass right), left = stereo
SEL tap: Next knob page (turns on release)

Knob pages · tap SEL to cycle, HOME for HOME

PAGE	K1	K2	K3	K4
HOME	Kit for all the drums at once (list below), or Style for the style's own mix	Intensity 0–100: density and complexity together	Line (as BASS)	Sound (as BASS)
DRUMS	Tempo	Swing 0–100	Density 0–100, 50 as the style plays	Complexity 0–100: low = the style's surest hits, high = looser
GEN	Evolve 0–100, 0 off	Every 1 · 2 · 4 · 8 · 16 bars	Fills off · every 4 · 8 · 16 · 32 bars	Ghost notes 0–100
BASS	Line (rhythm, list below)	Cutoff in Hz, read at C2 like most synths: higher notes open it with them, and each note’s envelope opens it further	Drive 0 clean, 50 the sound as designed, 100 distorted (the level stays put)	Sound (24, list below)
SOUND	Level 0–100	Tune ±24 semitones	Decay 0–100	Kit (14, list below)

On the SOUND page the page title shows the drum being edited; pick it with keys C4–F4. Clap shares the snare's kit, open hat shares the hats'.

Keys

F3Mute kick

F#3Mute snare

G3Mute clap

G#3Mute hat

A3Mute open hat

A#3Mute perc

B3Mute bass

C4Kick

C#4Snare

D4Clap

D#4Hat

E4Open hat

F4Perc

Mute toggles · lit = playing New pattern for that drum · on the SOUND page: select that drum

Screen

Grid: Bright: played · dim: in the pattern but not played (a break, a build) · white: now. Stopped: the pattern.
Bass row: Labelled with the chord's root (it changes as the chords move)
EXT 124: Following a DAW's MIDI clock at that tempo
BREAK / BUILD 3: Section, with the build's bars left
LP40 / HP25: DJ filter amount
SPLIT: Drums left, bass right
O-1: Bass octave shift
HOLD · LOCK: Chords held (SEQ) · pattern locked (REC). If space runs out these drop first; their buttons still show them.

DAW · USB

MIDI clock: Over USB only. DAW Start: from the top. Playing from a later point (song position + Continue): from that point. Stop stops. No clock for ½ s: back to RHYTM-SEC-1's own tempo.
USB inputs: With the standalone firmware:

1–2 Master (stereo)3 Bass4 Kick5 Snare + clap6 Hats + perc

All USB audio is at full level whatever the MASTER knob says: turn MASTER down to silence the speaker and keep recording. Stems follow mutes and the DJ filter. Settings and the current pattern are saved once RHYTM-SEC-1 has been stopped and left alone for 10 s, and when you leave it with HOME.

Lists

Styles (SELECT)

HypnoLofiHouseDubstepDubDnBBreaksGarageElectroTrapDiscoFunkReggaeSynthwaveAmapianoTrip-hopIndustrialPsyForest

Scales (SEL + PRESETS)

MajorDorianPhrygianLydianMixolydianMinorPent majorPent minor

Bass lines (BASS K1)

DroneRootKickEighthsOffbeatWalkRiffOctavesTwo-stepOne-dropLog drumSkippyFunkBig beatDubGallop

Bass sounds (BASS K4)

SawsWarmGritDirtyReesePulseFMOrganRumbleSubSquareHooverFifthsMetalSyncBrightWubBiteTineClangGnarlWidePowerAir

Drum kits (HOME K1, SOUND K4)

HypnoHouseTechnoAcidBreakMinimalHard808DustyHeavy909ElectroDnBTrap