Polyphonic Motion: Automating the Korg Minilogue via Web MIDI

The Korg Minilogue is a modern classic. With its 4-voice analog polyphony, built-in tape-style delay, and highly intuitive interface, it has found a home in countless studios and live setups.

But while the Minilogue is incredibly fun to play live, manual tweaking has its limits—especially when playing polyphonic chords where both of your hands are occupied. By connecting the Minilogue to an external sequencer, you can introduce automated waveshaping and filter movement, transforming static chords into lush, moving soundscapes.

In this guide, we’ll show you how to connect, configure, and automate the Korg Minilogue using the closeby.1 Web MIDI Sequencer to add expressive motion to your polyphonic tracks.

The Magic of Waveshaping and Polyphony

Unlike many analog synthesizers that only offer standard wave shapes (saw, triangle, square), the Korg Minilogue features a unique Shape knob for each of its two voltage-controlled oscillators (VCOs). By turning this knob, you alter the harmonic content of the wave—morphing a simple saw wave into a complex, buzzy timbre.

Since the Minilogue's knobs transmit and receive MIDI Control Change (CC) messages, you can automate these shapes from closeby.1.

By automating these parameters, you can:

Evolve Chord Progressions: Slowly sweep the oscillator shapes over a 4-bar phrase to keep the pad sound interesting.
Automate Filter Cutoffs (CC 43): Create dramatic builds by sweeping the low-pass filter synchronously across your chord steps.
Modulate Envelope Times: Change the amplifier decay and release times dynamically to shift from percussive plucks to long, ambient tails.

Step-by-Step Connection & Configuration

Getting the Minilogue connected and configured with closeby.1 takes less than two minutes:

1. Connect the Minilogue

Connect the Minilogue to your computer using a standard USB-A to USB-B cable. (This USB connection transmits bidirectional MIDI data). Turn on the synthesizer.

2. Launch closeby.1 Studio

Navigate to the closeby.1 Studio in your web browser.

3. Load the Instrument Profile

On the left sidebar of the sequencer grid, click your synth track (e.g., Track 2).
Open the track settings dropdown.
Under Instrument Profile, select Korg Minilogue. This loads the custom CC parameter mapping (e.g., changing CC 43 to VCF Cutoff and CC 17 to VCO1 Shape).
Set the MIDI Output to the Minilogue or your USB-MIDI interface.
Set the MIDI Channel to match your Minilogue's receive channel (default is Channel 1).

Automating the Minilogue in closeby.1

Now that your track is set up, you can start writing note sequences and drawing automation:

Automating Oscillator Shapes

In the right-hand panel of closeby.1, select VCO1 Shape (CC 17) or VCO2 Shape (CC 19).
Under the step sequencer grid, click and drag to draw a wave-like curve in the automation lane.
Press Play. You will hear the texture of the synth chord change on each step as the oscillator shapes are modulated.

Modulating the Filter

Select VCF Cutoff (CC 43) in the CC panel.
Draw a rising diagonal ramp.
Hit play to hear the classic Minilogue analog low-pass filter open up, building tension right before a transition.

3 Performance Techniques using MIDI CC Bypass

When performing live with the Korg Minilogue, you want to maintain a balance between automated control and spontaneous manual play. MIDI CC Bypass in closeby.1 helps you achieve this:

1. The Instant Clean Pad Drop

Build massive tension during a pad buildup by automating VCF Cutoff (CC 43) to open and VCF Res (CC 44) to ring out. At the transition, click ✓ CC Streaming to change it to ⚠️ CC Bypassed. The filter instantly resets or freezes, dropping the pads back to a warm, mellow background pad sound while the chords keep playing.

2. Manual Solo Tweak Overrides

While a chord sequence plays, toggle CC Bypass on. This stops the sequencer from sending CC messages. You can now physically adjust the envelope controls (like Amp EG Decay or Amp EG Release) or twist the physical Filter Cutoff knob without the sequencer fighting you. Toggle CC Bypass off to let the sequencer take over again.

3. Dynamic Oscillator Crossfades

Automate VCO1 Level (CC 40) and VCO2 Level (CC 41) in opposite directions. You can fade from a pure VCO 1 triangle wave to a gritty, waveshaped VCO 2 saw wave over the course of a sequence. Bypassing the CC stream lets you freeze the oscillator mix at any point.

Wrap Up

The Korg Minilogue's polyphonic engine is extremely expressive, and pairing it with closeby.1's Web MIDI automation takes it to the next level. Whether you are automating wavetable shapes, sweeping filters, or using CC Bypass to perform dramatic live transitions, this combination opens up a world of creative possibilities.

Plug in your Minilogue, load up closeby.1, and start sculpting your analog pads today!