DIATONICA

Free VST2 / VST3 Mono Sequencer Synth plugin for Windows by OVM PLUGIN.

A / SEQUENCER

LEFT :

Mute : Set step silent when unchecked.

Note : Set note pitch (-48 to 48 semitone range).

Gate : Modify Note length (Increase or decrease value).

Slide : Tied notes (see Right panel).

RIGHT :

MAIN.

Div : number of division per beat (1 = quarter note, 2 = 1/8th note...).

Step : from 1 to 16 step loop.

Dir : Forward / Backward / Pendulum playback direction, relative to step loop.

Swing : Shuffle feel for division 2 and 4 (1/8th and 1/16th).

Slide : Long = TB303 like (tied notes), Short = individual step Glide.

Harmo : Harmonize sequence in Major or Minor scale with each diatonic note corresponding to its own mode, and non-diatonic notes harmonized with diminished intervals. Minor scale borrow the 5th mode of harmonic minor scale (Dominant phrygian). Interval change are not displayed.

Key : Harmonizer key (see Record).

Shift : Move pitch step by step on the right.

Auto : Shift on each new note.

REC : Record sequence with a MIDI Keyboard. Semitone 0 corresponds to selected Key within the 4th octave (A4 to Ab4).

Reset all sequencer parameters at once to default value.

RANDOM.

Mute : Random mute probability (long slide may yield unpredictable results).

Length : Random gate value probability.

Oct : Random octave probability (-1 octave or +1 octave). Each one may be deactivated.

(- / + buttons).

Scale : Scale choice for randomizer (1st step is always 0, randomizer create a random pitch sequence in the given scale on other step).

Trigger : Trigger a new sequence.

Auto : Trigger on each new note.

MODE.

Pattern or Song mode : Select one of the two mode.

*PATTERN*.

Choice : Select one of the 8 pattern to program.

Copy / Paste : Copy and paste between pattern for fast programmation.

*SONG*.

Pattern length = Set 1 or 2 bars (depends on step length, regardless of direction).

Chain from 2 to 8 different pattern (click on the small numbers to set the loop).

Select : Click on each box to select one of the 8 pattern to be played.

Root : Select the root note for each pattern in the song loop (-12 to 12 semitone range).

B / SYNTHESIZER

LEFT :

Waveform : Two oscillators (A / B) waveform list.

Vol / Semi / On : Volume, Semitone range and On/Off for each (A / B).

Mod : Modifier for each waveform : Waveshaper for Sine, Quantizer for Triangle and Ramp, PWM for Square and Pulse, Detune for SuperSaw (none for Noise).

Fat or Stereo : Stereo spread for each oscillator.

Fine : Unison Fine detuning.

Sync : Fixed rate LFO detunes slave osc B synced by master osc A (not for SuperSaw B).

Zap : Short pitch effect.

FM : Osc A modulator, Osc B carrier (not for Super Saw).

RIGHT :

Filter type : Select one of the filter in the list.

Cutoff : Filter cutoff frequency.

Reso : Filter resonance.

Atk / Dec / EG : Filter envelope Attack / Decay / Amount (EG = Envelope Generator).

LFO / Rate : Filter LFO amount and rate (rate also applies to Sub filter, not the amount).

BOTTOM : OSCILLATORS EFFECTS.

Pan / Rate : Auto-Pan.

OD / Gain : Overdrive.

Chorus / Phaser with Rate : Chorus or Phaser effect (click on the small button to select).

Delay / Speed / Feedback : Select Mono or Stereo delay (small button).

Reverb / Time : Reverb amount and time (in second).

Gate / Master : Oscillators note length and global volume (osc + sub).

C / SUB.

On / Off button.

Gate / Level / Waveform / Octave / Fine : Note length / Volume / Saw or Pulse /.

Osc B -1 octave (unchecked) / Unison fine detuning.

Track : Follow or not Pitch and Mute sequence.

Filter controls : Cutoff / Resonance / Envelope Decay + Amount (EG) / LFO amount.

{See video at top of page}