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Madre.

Find the chord. Hear why it works.Pick a key, play chords from your laptop keyboard, and Madre helps you shape them into progressions that work, with the reasons spelled out.Free, in your browser. Nothing to install, no account, and your work stays on your device.

In shortA harmony tool you can play.It turns your laptop keyboard into chords, explains every one of them, and helps you shape them into progressions that hold together.

Play

Every chord in your key sits on a fixed letter key. Colour shows what follows best.

Understand

Home, away or tension, with the reasons for and against each chord where it sits.

Shape

Vary, analyse, write a melody, record over a loop, then export MIDI or print a chart.

Madre writing a progression in C major: the Stage keyboard, the key's chords with their letter keys, and the Inspector explaining why F works after Am.

Who it's for

Better chords, without opening a full studio.

Songwriters, composers, producers and students. Madre is a harmony tool that covers everything from your first chord to a finished chord chart.

01 — Write

Your laptop is the instrument.

Choose any key and scale: major, minor, all seven modes, and harmonic and melodic minor. Every chord in the key sits on a fixed letter key. Raise the complexity and the richer chords take the next free keys, so nothing you've learned moves.

QCIHome

WDmiiAway

EEmiiiHome

RFIVAway

TGVTension

YAmviHome

UB°vii°Tension

Colour leads

Colour shows which chords follow best from the one you're on.

Adjust inversions

Choose voicings and inversions yourself, or let Madre voice-lead them. It remembers the ones you pick.

MIDI keys or your laptop's

Play from a MIDI keyboard (in Chrome or Edge) or straight from your laptop. Number keys play back your progression.

Your own keys

Shift and a letter puts the chord you're looking at on that key, so your favourites are always under your fingers.

02 — Inspector

Every chord, explained.

The Inspector tells you what each chord does (home, away or tension) and lists the reasons for and against it where it sits: shared notes, how far the voices move, and where it leads next.

You learn harmony while you write.

The Inspector on C7: what the chord does in C major, and a verdict that it works here as well as C, or better.

03 — Stage

See it, change it.

The Stage shows exactly what's sounding, on piano or on guitar, with tunings and a capo. Click keys to build a chord and Madre names it.

Add or remove a note on a chord that's already in your progression and it changes in place, along with a verdict on whether the new chord still works there. Choose voicings and inversions yourself, or let Madre voice-lead them. It remembers the voicings you pick.

Adding B flat to C on the Stage turns it into C7 inside the progression; the Inspector says it works as well as C, or better. Dark theme.

04 — Shape

Shape the progression.

Four ways to move a progression forward once the first chords are down.

Vary: alternatives for F between Am and G, each with what it shares on the way in and out.

Find a route draws smooth paths from one chord to another, in any key and any number of steps.

05 — Record

Record, loop, arrange.

Record chords or melody live over a 4 to 16 bar loop, with a metronome, a count-in and automatic quantising to the 16th note. Keep the take or discard it.