Real Song. Real Progression
F - Am - Bb - Am - Gm7 - F - A7 - Dm - Db - Gm7 - C7 - F
💿 "What a Wonderful World" by Louis Armstrong
Break it down:
- Key: F Major
- Roman numerals: I - iii - IV - iii - ii7 - I - V/vi - vi - ♭VI - ii7 - V7 - I
- What it sounds like: Warm, hopeful, with sophisticated jazz colors that feel both familiar and surprising
- The magic moments: A7 (secondary dominant) leading to Dm, and that beautiful Db chord (♭VI borrowed from F minor)
- Why it works: This progression shows borrowed chords in action - staying mostly in F major but borrowing that Db chord from F minor for extra emotional depth. The A7 is a secondary dominant that temporarily tonicizes Dm, creating a "mini key center" before the progression continues.
That Db chord comes from F minor, not F major. It adds a sweet, sad feeling that you can't get by staying in just one key.
Try this: Play the progression using Dm instead of Db, then switch to the borrowed Db.
Feel how one chord from outside the key transforms the entire emotional color.
This progression is featured in this week's Vault Pick - check it out to hear the progression and explore a list of different borrowed chord options.
🧠 Term of the Week: Borrowed Chords
What it sounds like: Music with richer colors and deeper emotional shades - like adding new paint colors to your palette.
What it is: Borrowed chords come from parallel keys (same starting note, different mode).
Instead of being limited to seven diatonic chords, you strategically borrow from the parallel minor, Lydian, or other modes for emotional impact.
Why it works: Your ear expects diatonic harmony, so introducing a chord from outside the key creates beautiful tension and color.
It's familiar enough to sound musical, but different enough to be captivating.
Two main approaches:
1. Borrowed Type - Keep the same root, change the chord quality:
- In C major: Change Am (iii) to A major, or F (IV) to Fm
- This is the most common and accessible approach
2. Borrowed Root - Use entirely different roots from parallel modes:
- From C minor: ♭III (Eb), ♭VI (Ab), ♭VII (Bb)
- From other modes: ♭II (Db) from Phrygian, #IV (F#) from Lydian
Most common source: The parallel minor key provides the
easy to use borrowed chord options:
- iv (Fm) - adds gentle melancholy
- ♭VI (Ab) - creates dreamy, nostalgic feeling
- ♭VII (Bb) - provides modal, open sound
Related technique: Secondary dominants temporarily tonicize diatonic chords (like A7 leading to Dm in C major), creating "mini key centers."
The result: One strategically placed borrowed chord transforms ordinary progressions into something memorable and emotionally rich - accessing feelings that pure diatonic harmony simply can't reach.