Sinfonion

ACL 42HP
fw 1.0
QUANTIZER SEQUENCER UTILITY MIDI

Verified sheet

The facts on this sheet have been cross-checked against the sources below.

Sources
Suggest a correction

Harmonic CV processor. Three scale-aware quantizer channels, four-voice chord generator, eight-pattern arpeggiator and 16-song chord-progression sequencer share one key, scale and mode across eight 16-bit pitch outputs.

Patch Ideas · 10

★ Minimum viable chord voice
Sequencer feeds CH 1 IN · CH 1 OUT to bass voice · CHORDS OUT 1-4 to four VCOs · MODE Chords · ROOT/DEGREE set chord · SPREAD opens voicing · one Sinfonion covers five-voice jazz harmony in one module.
▸ Show diagram
Patch diagramPatch diagram with 7 modules and 6 connections. Signals: 6 pitch.SinfonionBass VCOVCO 1VCO 2VCO 3VCO 4SequencerMODE: ChordsROOT: CDEGREE: maj7Chords: ROOT 3RD 5TH 7TH litSPREAD: noonCH 1 IN1v/octCH 1 OUT1v/octCHORDS OUT 1-41v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octPitch1v/octpitch
★ Chord progression with clocked changes
Master clock to CLK · SEQ on · song 1A with 4 steps (Cmaj7 → Am7 → Dm7 → G7) · 4 beats each · CHORDS OUT 1-4 → four VCOs through one VCA pad · chord changes lock to clock.
▸ Show diagram
Patch diagramPatch diagram with 6 modules and 5 connections. Modules: Sinfonion, Master Clock, VCO 1, VCO 2, VCO 3, VCO 4. Signals: 4 pitch, 1 clock.SinfonionMaster ClockVCO 1VCO 2VCO 3VCO 4SEQ: onSong 1A: Cmaj7 - Am7 - Dm7 - G7 (4 beats each)CLKclkCHORDS OUT 1-41v/octOutclkV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octpitchclock
Arpeggiated pad with pattern sweep
Clock into ARP CLK · arp OUT to VCO · select 1-3-5-7 · PATTERN Baroque · RANGE 2 octaves · PITCH sets lowest note · change BEGIN to 3rd for reset on chord change · deep jazzy motion that stays in-key under chord progression.
▸ Show diagram
Patch diagramPatch diagram with 6 modules and 6 connections. Modules: Sinfonion, Clock, VCO, Envelope, VCA, Output. Signals: 2 audio, 1 cv, 1 pitch, 1 trigger, 1 clock.SinfonionClockVCOEnvelopeVCAOutputArpeggio: ROOT 3RD 5TH 7TH litPATTERN: BaroqueRANGE: ~2 octavesBEGIN: 3rdARP CLKclkARP OUT1v/octOutclkV/Oct1v/octOutaudioTrigtrigOutcvInaudioCVcvOutaudioInaudioaudiocvpitchtriggerclock
★ Walking bass with root on 1 and 3
Random CV to CH 1 IN · CH 1 side A: 5TH 7TH 9TH · side B: ROOT · Menu → Ch 1 A/B 'Each Odd Beat' · sequencer on with 4-beat bar · bass plays root on beats 1 & 3, scale notes on 2 & 4 — walking-bass feel locked to chord changes.
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 3 connections. Modules: Sinfonion, Random CV, Clock, Bass VCO. Signals: 1 cv, 1 pitch, 1 clock.SinfonionRandom CVClockBass VCOSEQ: onCH 1 A side: 5TH 7TH 9THCH 1 B side: ROOTMenu: Ch 1 A/B = Each Odd BeatCLKclkCH 1 INcvCH 1 OUT1v/octOutcvOutclkV/Oct1v/octcvpitchclock
Equidistant quantizer for LFO melodies
Slow LFO into CH 3 IN · CH 3 ROOT 5TH 9TH lit · press EQ-DIST · each of the three notes gets equal time across the LFO's octave — fixes the 'root-is-always-playing' bias of classical quantizers.
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 2 connections. Modules: Sinfonion, LFO, VCO. Signals: 1 cv, 1 pitch.SinfonionLFOVCOCH 3: ROOT 5TH 9TH litCH 3 EQ-DIST: onCH 3 INcvCH 3 OUT1v/octOutcvV/Oct1v/octcvpitch
Harmonic shift drop
Assign POT 1 → Harmonic Shift · chord with 3rd, 7th, 9th, 11th lit · turn POT 1 CW during a drop — harmonic complexity strips back to root+5th then just root, useful for dramatic tension → release transitions.
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 4 connections. Modules: Sinfonion, VCO 1, VCO 2, VCO 3, VCO 4. Signals: 4 pitch.SinfonionVCO 1VCO 2VCO 3VCO 4Assign POT 1: Harmonic ShiftChords: ROOT 3RD 5TH 7TH 9TH 11TH litCHORDS OUT 1-41v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octpitch
Autogate re-triggers envelope on note changes
Menu → OUT 1 = Chan 2 Autogate · sequencer into CH 2 IN · VCO hears CH 2 OUT · envelope triggered by OUT 1 · envelope only re-fires when Channel 2 quantizes to a new semitone — repeated identical notes don't re-articulate.
▸ Show diagram
Patch diagramPatch diagram with 6 modules and 6 connections. Modules: Sinfonion, Sequencer, VCO, Envelope, VCA, Output. Signals: 2 audio, 1 cv, 2 pitch, 1 trigger.SinfonionSequencerVCOEnvelopeVCAOutputMenu: OUT 1 = Chan 2 AutogateCH 2: ROOT 3RD 5TH 7TH 9TH litCH 2 IN1v/octCH 2 OUT1v/octOUT 1trigPitch1v/octV/Oct1v/octOutaudioTrigtrigOutcvCVcvInaudioOutaudioInaudioaudiocvpitchtrigger
Input matrix unison swap
Send CH 1 IN to Channel 1 AND Channel 2 · CH 2 OUT plays Channel 1's input through Channel 2's button preset · momentarily different voicing on voice 2 while voice 1 continues · layered polyphony from one input stream.
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 3 connections. Modules: Sinfonion, Sequencer, VCO 1, VCO 2. Signals: 3 pitch.SinfonionSequencerVCO 1VCO 2Input Matrix: CH 1 IN → Ch1 + Ch2CH 1: ROOT 5THCH 2: ROOT 3RD 7THCH 1 IN1v/octCH 1 OUT1v/octCH 2 OUT1v/octPitch1v/octV/Oct1v/octV/Oct1v/octpitch
Super-Sinfonion jam
Master Sinfonion runs song progression · OUT 1 = Sync Master to slave's IN 1 (Sync Slave) · slave chord section plays additional voices locked to master's key · eight more voices join the band with one cable.
▸ Show diagram
Patch diagramPatch diagram with 6 modules and 5 connections. Modules: Sinfonion Master, Sinfonion Slave, VCO 5, VCO 6, VCO 7, VCO 8. Signals: 1 cv, 4 pitch.Sinfonion MasterSinfonion SlaveVCO 5VCO 6VCO 7VCO 8Menu: OUT 1 = Sync MasterSEQ: onMenu: IN 1 = Sync SlaveChords: ROOT 3RD 5TH 9TH litOUT 1cvIN 1cvCHORDS OUT 1-41v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octcvpitch
Just-intoned pad drift
Menu → Intonation: Just · sustained chord · ROOT CV tied to song progression — every chord change auto-retunes all twelve semitones to that root's pure intervals. Beats between 3rds / 5ths vanish and reappear as harmony shifts.
▸ Show diagram
Patch diagramPatch diagram with 6 modules and 5 connections. Modules: Sinfonion, Master Clock, VCO 1, VCO 2, VCO 3, VCO 4. Signals: 4 pitch, 1 clock.SinfonionMaster ClockVCO 1VCO 2VCO 3VCO 4Menu: Intonation = JustSEQ: on (song: I-vi-IV-V)Chords: ROOT 3RD 5TH 7TH litCLKclkCHORDS OUT 1-41v/octOutclkV/Oct1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octpitchclock

Behaviors

Three quantizer channels with different specialities Route a melody or random CV into CH N IN

All three channels share the same scale / mode. Channel 1 has A/B-switch (auto-selects one of two note sets on alternating beats for 'root-on-1 walking bass' feel). Channel 2 FILL1–5 expose the five non-scale notes for chromatic access / major-minor flips. Channel 3 EQ-DIST equidistantly maps allowed notes across the input octave — critical when quantizing LFOs or random voltages.

Four-voice chord generator Select any of ROOT, 3RD, 5TH, 7TH, 9TH, 11TH, 13TH in the CHORDS section; voices patched to OUT 1–4

The first four lit interval buttons map to OUT1–4. Fewer than four lit → some voices double. More than four lit → only the first four are played. INV cycles through inversions (root / 1st / 2nd / 3rd). SPREAD knob opens voices across octaves. 98 possible voicings. Sus chords automatically remap 3RD button to 4th.

Eight-pattern arpeggiator Patch clock to ARP CLK and voice to ARP OUT; select scale-note buttons

Patterns: Up, Down, Up/Down, Down/Up, Baroque (2 forward, 1 back), Octaves (each note twice — once octaved up), Brownian (random by single step), Random. BEGIN forces reset to a specific interval on each chord change. Built-in clock divider/multiplier (1/4 to 4/1, incl. triplet 3/2) on the arp clock.

Chord progression sequencer Press SEQ; clock into CLK jack

16 songs × 4 parts (A–D) × 32 steps. Each step stores root, degree, mode, beats (1–128), all 52 button states and all five octave switches. Clock divider 1–64 per part. ADD copies current step; DEL deletes; +/− BEATS tweak step length. Songs auto-save.

Chord progression sequencer — live mode Press SYNC (Arpeggio) on the SONG page

'Buttons + Octaves are Live' makes button and octave changes immediate rather than overwriting the current step. The knob values still auto-save. Essential for improvising on top of a locked progression without scrambling stored steps.

Freeze mode (hidden) Double-click the play/pause button

Current chord and scale freeze. ROOT / DEGREE / MODE knobs and buttons only affect the display — no audible change. Lets a performer pre-dial the next section silently, then exit freeze to drop it live.

Input & output matrices Press OCT, then GATE 2

4×4 input mixer (adds pitch from CH1/2/3/Arp IN jacks into any channel, with 2-octave subtract) and 4×4 output switch (each OUT jack reads exactly one quantizer). Unlocks voice swaps, unison plays and polyphonic routings impossible to build from external modules.

Soft vs true bypass per channel 13TH in OCT page toggles CH 1/2/3 bypass state

Normal → quantize · Soft Bypass (dim): raw pitch passes but transpose, chaotic detune, pitch bend and 'IN-follows-ROOT' still apply · Off (true bypass): 1:1 ADC→DAC pass-through with ~2mV precision — effectively a high-precision buffer.

IN follows ROOT Per-section button (FILL/FILL1/13TH/SLEW/DIR) on OCT page

Automatically shifts the input pitch by the musical distance from C to the current root, so a bass sequence stays shaped around the new chord. Shifts of 7 semitones+ octave down instead of up.

Chaotic Detune / Chaotic Note Shuffle Assign CV 1–4 to function

Chaotic Detune: bipolar, detunes all eight pitch outputs independently up to 1 semitone — audio-rate modulation (1kHz update) produces disharmonic 'drunk-orchestra' motion. Chaotic Note Shuffle shuffles the 12 semitones within each octave globally for controlled dissonance.

Harmonic Shift Assign CV 1–4 or POT 1/2 to Harmonic Shift

Progressively strips harmonic complexity: at 0V all intervals allowed, 0.7V removes FILL notes, 1.4V 11th, 2.1V 13th, 2.9V 9th, 3.6V 7th, 4.3V leaves root+5th, 5.0V forces root only. Negative voltages remove in reverse order.

Non-equal temperaments Menu → Intonation

Switch globally between Equal, Just and Quarter-comma Meantone. Just retunes automatically when the root note changes — unique to Sinfonion and unavailable from any standalone quantizer.

Tuning Mode TUNE button

Forces all eight outputs to a selectable octave C (1V steps from -2V/C0 to 8V/C8). Octave switches are honoured; CVs that modify pitch are suppressed. Use to calibrate external VCOs against Sinfonion's 16-bit DACs.

Super-Sinfonion sync Set OUT 1 on master to 'Sync Master'; IN 1 on slave(s) to 'Sync Slave'; cable master OUT1 → slave IN1

Serial link (115200 bps) sends ROOT / DEGREE / MODE / TRANS / Chaotic Detune and sequencer clock+reset over a single patch cable. Unlimited slaves via mult. Slave sequencer disables; master drives the chord/scale everyone plays in. Display shows 'Sync: alive'.

Autogates and output triggers Menu → OUT 1/2 → 'Chan X Autogate' etc.

OUT 1/2 fires a 10ms trigger whenever a quantizer actually outputs a new semitone — great for re-triggering envelopes only on note changes. Also available: Arpeggio Beat, Sequencer Clock / Beat / Song-Step / Song-Reset.

Controls

Global ROOT Selects the root note of the current scale (C, C#, … B). Together with DEGREE defines the scale shown on the display.
12 semitones · CV input sums · menu-assignable pot
Global DEGREE Selects the degree / chord quality within the current mode. Combined with MODE picks one of 88 built-in scales.
7 degrees per mode
Global MODE Picks the musical mode. Chord-building modes (Chords, Chords2, Slashch) map buttons to jazz functions; scale modes (Major, Minor, Mel.Minor, Har.Minor, Har.Major, Db.H.Maj) map buttons to degrees.
8 modes · stored per sequencer step
Global TRANS Global transposition in semitones. Applies to every pitch output.
±12 semitones · noon = 0 · dedicated CV also available
Global PRESET Selects one of 16 button presets in non-sequenced mode; becomes the song selector when SEQ is on.
16 positions · CV-assignable
Global SLEW Master slew / portamento time. Per-section enable via SLEW buttons or IN 1/2.
Linear or exponential curve (menu) · CV attenuates when patched
Assign POT 1 / POT 2 Two assignable knobs routable to 28 CV functions — e.g. Harmonic Shift, Chaotic Detune, Song select, per-channel Pre-Transpose.
Attenuates CV at the matching CV jack if both are assigned
Chord Section PITCH (Chords) Manual pitch control of the chord root. Sums with IN jack to set the lowest chord note.
4 octaves · not saved in sequencer steps
Chord Section SPREAD Spaces chord voices apart. CCW = tight, CW distributes the four voices evenly across the selected range.
0 – many octaves · CV-assignable
Arpeggio Section PITCH (Arpeggio) Lowest note of the arpeggio pattern. Adds to IN jack and Pre-Trans CV.
~4 octave range
Arpeggio Section RANGE Range of the arpeggio in semitones. With range 0 the section acts as a clocked quantizer that grabs nearest allowed note.
0 – 5 octaves

I/O

IN · 20

  • CH 1 IN
    Pitch input for Channel 1 quantizer. Routable via input-mixing matrix.
  • CH 1 TRIG 3V+ edge GATE
    Sample-and-hold trigger. Rising edge quantizes the current IN voltage.
  • CH 1 A/B 0V / 5V
    Dedicated A/B switch. Above ~3V forces Channel 1 to use side B scale-note selection (only if A/B menu set to jack).
  • CH 2 IN
    Pitch input for Channel 2 quantizer. Channel 2 exposes all 12 semitones via FILL1–FILL5.
  • CH 2 TRIG 3V+ edge GATE
    S&H trigger for Channel 2.
  • CH 3 IN
    Pitch input for Channel 3 quantizer. EQ-DIST button distributes allowed notes evenly across the input octave.
  • CH 3 TRIG 3V+ edge GATE
    S&H trigger for Channel 3.
  • ROOT ±10V · 1/12V/semitone CV
    CV for ROOT note. 1/12V per semitone, wraps around. Patch a pitch CV to track the incoming note's pitch class as the scale root.
  • TRANS -10V to +10V
    Global transposition (unquantized). 1V/Oct.
  • CV 1 -10.24V to +10.24V CLK
    General-purpose CV. Menu-assignable to one of 28 functions (Transpose, Chaotic Detune, Harmonic Shift, Preset, Slew Time, Pre-Trans, Pitch Bend, Arpeggio Clock/Randomize, Song, Song Part, Sequence Step, Voltmeter, …).
    NORM → 0V when unpatched
  • CV 2 CV
    General-purpose CV 2. Same assignment list as CV 1.
  • CV 3 CV
    General-purpose CV 3.
  • CV 4 CV
    General-purpose CV 4.
  • IN 1 3V+ gate GATE
    Assignable gate input. 20 functions including Seq Song Reset / Part Reset / Step Forward-Backward, Slew-Enable per section, Quantize-Ch X, Chord Shuffle, Arpeggio Reset, Sync Slave.
  • IN 2 3V+ gate GATE
    Second assignable gate input. Same function list as IN 1.
  • CHORDS IN
    Pitch input for the chord section. Sums with PITCH knob to set chord root.
  • CHORDS TRIG 3V+ edge GATE
    S&H trigger for the chord section — samples IN on rising edge.
  • ARP IN
    Pitch input for the arpeggiator. Sets the lowest arpeggio note together with PITCH knob.
  • ARP CLK 3V+ edge GATE
    Arpeggio clock. Normalled from main sequencer CLK; each pulse steps to the next arpeggio note.
  • CLK 3V+ edge GATE
    Main sequencer clock. One pulse = one beat; chord change after step's beat count. Pre-divider (1–64) configurable per song part.

OUT · 8

  • CH 1 OUT -2V to +8V
    Channel 1 quantized pitch output. Routable via output switching matrix.
  • CH 2 OUT -2V to +8V
    Channel 2 quantized pitch output.
  • CH 3 OUT -2V to +8V
    Channel 3 quantized pitch output.
  • OUT 1 0 / 5V GATE
    Assignable gate / CV output. 14 functions: per-channel Autogate, Arpeggio Beat, Tuning Active, Sequencer Clock / Beat / Song-Step / Song-Reset, Sync Master.
  • OUT 2 0 / 5V GATE
    Second assignable gate output. Same function list as OUT 1.
  • CHORDS OUT 1-4 -2V to +8V
    Four independent chord voice pitches. OUT1 = first selected interval, OUT4 = fourth — stable mapping regardless of inversion or spread.
  • GATE 1 / GATE 2 ~5V gate GATE
    Two manual gate jacks toggled by the GATES buttons. Gate states are saved per sequencer step.
  • ARP OUT -2V to +8V
    Arpeggiator pitch output.