Why Use a Chord Progression Chart?

Every great song is built on a skeleton of chords. In Western music theory, chords aren't random; they follow patterns based on the Key Signature. This tool helps you visualize and hear these patterns instantly, saving you hours of trial and error.

The "Diatonic Chord Chart" above shows you the 7 "legal" chords for any major key. - Major Chords (I, IV, V): These sound happy, stable, and powerful. They are the pillars of Pop and Rock music. - Minor Chords (ii, iii, vi): These sound sad, emotional, or introspective. Using the vi chord is essential for modern "Dark Pop" or "Sad Girl" aesthetics. - Diminished Chord (vii°): This sounds tense and unresolved. It's rarely used in pop loops but is great for jazz turnarounds.

How to Use This Tool for Songwriting

1. Break Writer's Block: Stuck on a loop? Select a genre like "Neo-Soul" and hit Generate. You'll get a sophisticated IV-iii-ii-I progression that instantly sets a vibe different from standard radio pop.

2. Transpose Instantly: Written a melody in C but it's too low for your singer? Switch the "Key Center" to F or G. The tool instantly calculates the new chords for you, so you don't have to do the math in your head.

3. Ear Training: Click the individual chord blocks to hear what a "Major IV" sounds like compared to a "Minor ii". Over time, this trains your ear to recognize these intervals in songs you hear on the radio.