To build a chord progression we'll start by choosing a key (tonic and scale).
Next, we can build a triad chord on each of the scale notes. This creates a full pallet of chords that will keep us within the key we chose.
We can now select from these chords, repeat and reorder them to create different chord progressions.
Click on the triads to create your own chord progression :)
We encourage you to use the Chord Progression Generator to experiment with other keys and chords that extend beyond the boundaries of a single scale.