Homechord
Compose
A composition assistant for chord progressions. Sketch a progression, hear it instantly, swap chords with smart suggestions, then train your ears on what you built.
New in v3 →Open Homechord →A one-person workshop
Tools for musicians, built by one of them.
I'm Julien — developer and musician, guitar first. I build the practice software I need, use it every day, and share it when it's good enough to be useful: a composition assistant, an arpeggio trainer, and a sight-reading gym.
The tools
Three tools and a butler.
Each one covers a different part of a musician's day: writing, drilling, reading — and now deciding what to play next. Small, honest software — no ads, no engagement traps.
Arpèges
Drill
A one-tap arpeggio trainer for guitar. Pick a preset, the fretboard lights the shape, go. Offline, no account, no ads — just the reps.
New in v6 →Open Arpèges →
Sight Reading Gym
Read
A daily sight-reading gym for guitarists. Fresh études every day, your mic listens while you play, and you see exactly which frets and rhythms need work.
Desktop · macOS & WindowsFree prototype
Get the app →
Edgars
Practice
A practice butler for musicians who gig solo — it answers what to play next in about three seconds, and it makes every answer honest.
Out now →Google Play ↗iOS — soon
Meet Edgars →The workshop
Why a chameleon builds music tools
Webeleon started as a web workshop — the chameleon adapted to whatever clients needed. These days it adapts to something I care about more: music practice.
Every tool here exists because I wanted it for my own practice, couldn't find it done right, and built it. I use all three daily.
— Julien, Webeleon
Built from need
Each tool solves a problem straight out of my own practice log, not a market analysis. If I stop needing it, I say so.
Dogfooded daily
I practice with these tools every day. Rough edges get found by me before they ever reach you.
Small & honest
Offline-friendly, no ads, no dark patterns, accounts only where they earn their keep. No company behind it, no investors — just one musician who codes. Free while a tool is a prototype.
From the blog
Theory, software, practice.
The notebook behind the tools: harmony you can use, how the software is built, and how to practice with intent.
Waitlist
One email when something ships.
The mobile releases of Homechord and Arpèges are coming. Leave your email and you'll get exactly one message per launch — nothing else.