Projects
Personal work
Side projects I build for fun, learning, and real usage.
I'm Manuele — a DevOps engineer who builds personal software at the intersection of infrastructure, music, and creative technology.
Side projects I build for fun, learning, and real usage.
A professional iOS app that listens to your chords and automatically generates harmonic voicings for your melody — in real time, as you play.
Plug in via USB or connect wirelessly over Bluetooth MIDI. Works with any class-compliant controller.
Define a note boundary. Below = chord zone. Above = melody zone. Use MIDI Learn to tap it in.
The app detects your chord in real time and generates harmonized accompaniment for every melody note you play.
Doubles the melody at octaves above and below.
Adds the 5th and octave below for a power chord effect.
Generates 3-voice harmonic triads in root position.
Creates rich 4-voice seventh chord voicings.
Stacks all chord tones in close position beneath the melody.
Industry-standard jazz voicing used by professional session musicians.
Advanced drop-3 voicing for sophisticated, open-sounding arrangements.
Parallel motion at your choice of interval: 3rds, 4ths, 5ths and more.
Diatonic harmonization across 6 scales — Major, Minor, Dorian, Mixolydian, Lydian, Harmonic Minor.
Recognizes major, minor, diminished, augmented, dominant 7ths, 9ths, sus chords, power chords, and more — including inversions.
Separate input and output device selection, per-channel routing, 16-channel MIDI, and Bluetooth wireless connectivity.
Route harmonized MIDI to any compatible AU instrument plugin. Integrate directly into your existing iOS audio workflow.
Panic button for hanging notes, hold/latch mode, velocity filtering, and preset management — everything you need on stage.
I have always loved arranger keyboards.
There is something magical about them: you play a chord with your left hand and suddenly an entire band appears. Drums, bass, guitars, pads — all following your harmony in real time. For a keyboard player, it feels like having a musical ecosystem under your fingertips.
For many years I played with arranger keyboards and appreciated the elegance of that interaction model. It is incredibly powerful: simple gestures generate rich musical structures.
But over time my setup changed.
As I started playing more with bands, DAWs, software instruments and live performance rigs, I slowly moved away from arrangers and toward synths, stage pianos, and MIDI controllers.
And that transition was… a little painful.
Because while synths and stage pianos are incredibly flexible, they lack one thing arrangers do brilliantly: harmony awareness.
You can route MIDI everywhere, layer sounds, trigger clips, stack plugins — but if you want the system to understand the chord you're playing and react musically to it, things suddenly become complicated.
I started missing that arranger-style intelligence. Not the styles themselves necessarily — but the idea that the instrument understands harmony and can react to it in real time.
That is where the idea for MIDI Harmonizer was born. The goal of this project is simple: bring a bit of the arranger mindset into modern MIDI workflows.
Instead of building a full arranger keyboard, MIDI Harmonizer focuses on one powerful concept:
Play a chord on the left side of the keyboard and the system understands the harmonic context. Then when you play notes on the right, the plugin generates harmonized notes in real time.
All generated instantly and sent to your synth, DAW, or external MIDI gear.
The goal is not to replace arrangers. Arranger keyboards are amazing instruments with decades of engineering behind them.