Guitar chord progressions
Blues harmony often starts with three chords: I, IV, and V. What makes it distinctive is how dominant seventh chords, repeated returns to the tonic, minor-key movement, turnarounds, and rhythm shape those chords into a groove.
The examples below are playable four-chord loops built for StrumForge. Use them to practice the essential movements inside blues music, then change the groove, tempo, key, voicing, or scale to make each one your own.
If you only try one blues guitar progression, begin with:
A7 – D7 – A7 – E7
In the key of A, these are the I7, IV7, I7, and V7 chords. A7 establishes the tonal center, D7 moves away from it, the return to A7 brings the progression home, and E7 creates tension that leads back to A7 when the loop repeats.
All three chord roots come from the basic I–IV–V blues framework. Using dominant seventh chords on each root creates the major-versus-minor tension associated with blues harmony.
A dominant seventh chord combines a major triad with a flattened seventh. In A7, those notes are A, C♯, E, and G. That mix of major and minor color gives the chord tension even when it functions as the tonal center. Blues commonly uses A7, D7, and E7 as the I, IV, and V chords in A.
Blues progressions repeatedly move away from the I chord and return to it. The return is part of the groove: it creates room for a vocal line, guitar answer, or short fill before the harmony moves again.
A turnaround appears near the end of a phrase and pushes the music back toward the beginning. In a four-chord loop, the final chord can perform the same job by creating tension that resolves when the first chord repeats.
The chord names alone do not determine whether something sounds like a shuffle, slow blues, blues rock, or straight-eighth groove. The meter, subdivision, accents, muting, tempo, and guitar phrasing provide much of that identity.
| Key | Four-chord loop | Formula |
|---|---|---|
| A | A7 – D7 – A7 – E7 | I7–IV7–I7–V7 |
| E | E7 – A7 – E7 – B7 | I7–IV7–I7–V7 |
| G | G7 – C7 – G7 – D7 | I7–IV7–I7–V7 |
| C | C7 – F7 – C7 – G7 | I7–IV7–I7–V7 |
| D | D7 – G7 – D7 – A7 | I7–IV7–I7–V7 |
A and E are useful starting keys for open-position blues guitar. G and C offer different open-chord combinations, while movable barre shapes let you transfer the same formula into any key.
Each example contains exactly four chord positions and can be opened in StrumForge. These are practice loops and songwriting modules rather than complete twelve-bar arrangements.
Enable 7ths in the chord options when you want dominant seventh and minor seventh voicings. Use Open or Barre options depending on whether you want familiar shapes or movable positions.
Set a tempo where the chord changes remain clean. Establish the pulse first, then experiment with a groove that supports swung, triplet, or straight-eighth phrasing if such a groove is available.
Cycle through available voicings for the same chord. Open dominant seventh chords work well in guitar-friendly keys, while barre shapes make the I–IV–V relationship movable.
If the full loop is uneven, isolate the weakest transition—for example, D7 to A7 or E7 back to A7—before restarting the progression.
For a blues in A, try the A minor pentatonic or A blues scale over the loop. Aim for notes from the current chord when the harmony changes instead of playing the scale continuously without reacting to the progression.
Keep the chords fixed while changing the groove, tempo, guitar sound, or voicing. This makes it easier to hear which element is changing the feel.
Use A7 – D7 – A7 – E7 for each example below.
Interpret each beat as a long-short subdivision rather than two equal eighth notes. Keep the pulse relaxed and avoid rushing the shorter note.
Play even eighth notes with firmer accents and more muting. The harmony stays the same, but the result feels more direct and driving.
Reduce the tempo, leave more space between chord attacks, and allow fills or vocal phrases to answer the rhythm guitar.
Play a strong chord accent, then leave deliberate space. The silence gives the next guitar or vocal phrase more impact.
Browse the guitar chord progressions hub for more playable starting points.
The basic blues framework uses the I, IV, and V chords. In A, those roots are A, D, and E, and they are commonly played as A7, D7, and E7.
A dominant seventh chord combines a major third with a flattened seventh. That tension helps create the mixture of major and minor color associated with blues harmony.
No. StrumForge generates four chord positions, so the examples on this page isolate useful blues movements as repeatable loops. Use the dedicated 12-bar blues page when you want to study the complete twelve-measure form.
Try A7–D7–A7–E7 or E7–A7–E7–B7. Start slowly with open-position shapes and focus on keeping the rhythm steady through each change.
Minor pentatonic and blues scales are common starting points. Over A7–D7–E7, try A minor pentatonic or the A blues scale, then emphasize notes belonging to each chord as it changes.
Yes. A5–D5–A5–E5 keeps the I–IV–I–V root movement while removing the major and minor thirds. This works well for blues-rock riffs and heavier rhythm parts.
Yes. Each example includes playback and a link that opens the same four chords in the StrumForge generator with guitar diagrams and timing controls.
Yes. You can change the key, enable different chord families, replace individual chords, reorder the progression, and cycle through available voicings.
