Petronella (key: A). It uses 5 unique chords and is classified as Intermediate difficulty.
Click on chord to view chord fretboard diagrams for the chord.
Unique chords
5 chordsIntermediate
Functional harmony
Progression (degrees)
IV → II7 → V → V7 → I7
Progression (chords)
D → Bm7 → Em → E7 → A7
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Simple Tune Structure - Parts/Chords
Parts and chords for session tune Petronella. Use Key+/Key− to transpose.
Part A
D A |D Bm7 |Em E7 |A7- |D A |D Bm7 |Em A7 |D - :||
Part B
D - |Em - |A7 - |D - |D - |Em - |A7 - |D - :||
Commonly used functional chords in trad major keys
This table shows the standard diatonic chords in a major key, commonly used as the harmonic foundation for traditional tunes.
| I | ii | iii | IV | V | vi | (V7) |
|---|---|---|---|---|---|---|
| A | Bm | C#m | D | E | F#m | E7 |
| C | Dm | Em | F | G | Am | G7 |
| D | Em | F#m | G | A | Bm | A7 |
| E | F#m | G#m | A | B | C#m | B7 |
| F | Gm | Am | Bb | C | Dm | C7 |
| G | Am | Bm | C | D | Em | D7 |