Counted in real songs, not derived from a rule
Harmony's suggestions are counted, not deduced from a rule of theory. Every one of them comes out of the Hub's own catalogue: 2,617 songs and 201,513 chord changes read straight from their charts. Each chord it offers carries the number of times it actually follows the one before it, so a percentage on screen is a count — not an estimate, not a guess dressed up as a figure.
Three views of the same thing
The Rosette is where you start: the current chord sits in the middle, its follow-ups fan out around it, and the size of each bubble tells you how common that move is. One glance and you know which door is wide open and which one is a back alley.
The Tree remembers. It shows where you came from, the branches you tried and walked away from — they stay clickable, so you can pick any of them back up — and the chords you could have played instead.
The Circle of fifths shows you where you are in the tonal space. Majors on the outside, minors on the inside, each relative minor tucked under its major. Frequent moves show up as short lines; the rare ones cut right across the circle. If you've ever wanted a circle of fifths with your own progression drawn on it, this is it.
The three views share a single state: switch between them and you're still on the same chord, in the same progression.
From the obvious to the daring
A slider sets how far out you want to go. To the left, the moves everybody plays. To the right, the ones nobody would have offered you. It's the same counted data either way — you're simply choosing between the obvious and the daring.
You hear what you build
Every chord sounds on hover and on click, so you judge with your ear before you commit, not after. Once the progression is written, play it back from end to end, and copy it out.
Start anywhere, even somewhere strange
Any chord can be the first one, rare ones included. The table covers 20 qualities — major, minor, 7, maj7, m7, sus2, sus4, 6, 9, m6, m9, maj9, add9, add11, 7sus4, dim, dim7, m7b5, aug and the bare fifth. When a quality is missing from the counts, Harmony falls back on its family.
- Chord suggestions counted across 2,617 songs and 201,513 chord changes
- Three linked views: Rosette, Tree, Circle of fifths
- A slider from the obvious moves to the bold ones
- Every chord audible on hover and on click
- Play the finished progression back, or copy it out
- 20 chord qualities, free, no account, no ads