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MIDI Nodes

Nodes for receiving, generating, transforming, and routing MIDI data.

I/O

MIDI In

Receives MIDI from the DAW host (plugin mode) or from your connected MIDI controller (standalone mode). All MIDI messages on the track are passed through: notes, CC, pitch bend, clock, and more.

MIDI In

Output: MIDI stream

MIDI Out

Sends MIDI from your MNodes patch back to the DAW host. Use this to drive other instruments or send MIDI data to other tracks.

MIDI Out

Input: MIDI stream


Keyboard & Monitor

MIDI Keyboard

An on-screen piano keyboard. Click the keys with your mouse or use your computer keyboard to play notes. Outputs standard MIDI messages.

MIDI Keyboard

Output: MIDI notes

MIDI Monitor

Displays all incoming MIDI messages in real-time. Shows note on/off, CC, pitch bend, and other messages. Essential for debugging when MIDI isn't behaving as expected.

MIDI Monitor

Input: MIDI stream


Note Processing

MIDI Transpose

Shifts all incoming notes up or down by a number of semitones.

MIDI Transpose

Input/Output: MIDI stream

MIDI Octave

Shifts all incoming notes up or down by whole octaves (12 semitones at a time).

MIDI Octave

MIDI Scale

Forces incoming notes to fit a musical scale. If a note is outside the scale, it gets moved to the nearest scale degree. Useful for making sure everything stays "in key" even when using random generators or quantized inputs.

MIDI Scale

ParameterOptionsDefaultDescription
RootC, C#, D, D#, E, F, F#, G, G#, A, A#, BCThe root note of the scale
Scale58 scalesMajorThe musical scale to quantize to

Available scales include: Chromatic, Major, Minor, Blues, Dorian, Mixolydian, Phrygian, Lydian, Locrian, Harmonic Minor, Melodic Minor, Pentatonic Major, Pentatonic Minor, Diminished, Augmented, Wholetone, Hungarian Gypsy, Spanish-Gypsy, Arabian, Japanese, Chinese, Egyptian, Persian, and many more (58 total). Also supports a Custom scale that you can edit interactively.

MIDI Chord

Generates full chords from single notes. Each incoming note becomes the root of the selected chord type. For example, if you select "Major" and play C, you hear C-E-G.

MIDI Chord

ParameterDescription
ChordThe chord type to generate (53 types available)

Chord types include: Major, Minor, Major7, Minor7, Dominant7, Major9, Minor9, Augmented, Diminished, Sus2, Sus4, add9, add11, 6add9, and many more (53 total).

MIDI Note Trigger

Generates a MIDI note on demand. Each time it receives a trigger event (or when the value reaches 0.5 or higher), it sends a MIDI note with the configured pitch, velocity, and duration.

MIDI Note Trigger

ParameterRangeDefaultDescription
Note0 - 12760 (C4)Which MIDI note to send
Velocity1 - 127100How hard the note is played
Length1 - 10,000 ms250 msHow long the note lasts before note-off is sent
Channel1 - 161MIDI channel

Input: Trigger (Data or CV) Output: MIDI note

MIDI Split

Splits a MIDI stream into separate outputs by message type. Useful for routing different types of MIDI data to different parts of your patch.

MIDI Split

Input: MIDI stream

Outputs:

OutputDescription
Note OnOnly note-on messages
Note OffOnly note-off messages
CCControl Change messages
Pitch BendPitch bend messages
AftertouchAftertouch (pressure) messages
ProgramProgram Change messages
ClockMIDI clock, start, stop, continue, and song position

Generators

MIDI Arpeggiator

Takes held notes and plays them one at a time in a repeating pattern. Hold a chord and the arpeggiator will cycle through the individual notes at the speed you set.

MIDI Arpeggiator

ParameterRangeDefaultDescription
Transport SourceInternal / Transport (DAW)InternalWhere the arpeggiator gets its timing
BPM20 - 300120 bpmTempo (when using Internal)
CycleChoiceSpeed of the arpeggiation (1/4, 1/8, 1/16, etc.)
Swing50 - 99%50%Swing feel. 50% = straight
Gate1 - 100%75%How long each arpeggiated note lasts as a percentage of the step
DirectionChoiceUpThe pattern of the arpeggio
Octaves-4 - +40Extends the arpeggio across additional octaves
LatchOn/OffOffWhen on, notes stay active even after you release the keys
Out ChannelInput / 1-16InputWhich MIDI channel to output on

Direction modes: Up, Down, UpDown, DownUp, Played (order you pressed), Reverse Played, Random, Chord (all notes at once)

Outputs: MIDI Out, Current Step (which step is currently playing)

MIDI Riff Generator

A step-based MIDI pattern generator with up to 128 steps. Create melodic sequences by setting the note, velocity, and duration of each step. Includes a Generate button for instant random pattern creation.

MIDI Riff Generator

ParameterRangeDefaultDescription
Transport SourceInternal / Host / External Position / External PhaseInternalTiming source
BPM20 - 300120 bpmTempo (Internal mode only)
CycleChoiceStep rate (1/4, 1/8, 1/16, etc.) with dotted and triplet variants
Steps1 - 128Number of steps in the pattern
Swing%Swing amount
Channel1 - 16MIDI output channel
Loop StartFirst step of the loop
Loop LengthHow many steps to loop
GenerateEventCreate a random pattern
Complexity0 - 100%Controls density and variation of generated patterns
ClearEventReset all steps
Shift Left/RightEventShift the pattern by one step
Transpose Up/DownEventTranspose all notes by one semitone
Play / StopEventTransport controls (Internal mode)

The Riff Generator has three pages that you can switch between:

  • Notes: Set the pitch of each step
  • Velocity: Set the velocity (how hard) of each step
  • Duration: Set how long each step's note lasts

Outputs: MIDI Out, Current Step (CV), Pattern Out (for connecting to Pattern To MIDI File)

Pattern To MIDI File

Exports a pattern from the MIDI Riff Generator as a standard MIDI file (.mid) that you can drag into your DAW.

Pattern To MIDI File

How to use it

  1. Add a MIDI Riff Generator and create your pattern
  2. Add a Pattern To MIDI File node
  3. Connect the Riff Generator's Pattern Out to the Pattern To MIDI File's Pattern In
  4. Click Emit MIDI File (or send a trigger to it)
  5. Add a MIDI Drag Exporter widget
  6. Connect the Pattern To MIDI File's MIDI File Out to the MIDI Drag Exporter
  7. Drag the MIDI Drag Exporter widget into your DAW to drop the MIDI clip

Inputs: Pattern In (from Riff Generator), Emit MIDI File (trigger) Output: MIDI File Out (connect to MIDI Drag Exporter)


Voice Management

MIDI Voice Allocator

Distributes polyphonic MIDI voices across multiple CV outputs. Essential for building polyphonic synthesizers that play more than one note at a time.

MIDI Voice Allocator

Input: MIDI stream

MNodes Documentation