# A 12-bar blues in A

**Composer of this Composition:** Peter · **License out:** CC BY-SA 4.0
**Meter:** 4/4 · **Tempo:** quarter note ≈ 80 BPM (tolerance ±3) · **Length:** 12 bars, one chord per bar, about 36 seconds
**Directionality:** 0.3 (stay close to the chords)
**Allowed transforms:** trim, gain, fade (no pitch-shift, no time-stretch)

## Prose

A 12-bar blues in A. One chord per bar, about 80 BPM, in 4/4. Relaxed and loose. Room between the changes.

## Chord anchors

| Step | Chord | Step | Chord | Step | Chord | Step | Chord |
|---|---|---|---|---|---|---|---|
| 1 | A7 | 2 | A7 | 3 | A7 | 4 | A7 |
| 5 | D7 | 6 | D7 | 7 | A7 | 8 | A7 |
| 9 | E7 | 10 | D7 | 11 | A7 | 12 | E7 |

One chord per bar. The last bar turns around, back to the top.

## Composition

4/4 · 80 BPM
[1 bar A7]
[1 bar A7]
[1 bar A7]
[1 bar A7]
[1 bar D7]
[1 bar D7]
[1 bar A7]
[1 bar A7]
[1 bar E7]
[1 bar D7]
[1 bar A7]
[1 bar E7]

## Credits

- **Music:** 12-bar blues, a traditional form, public domain.
- **This text:** Peter. CC BY-SA 4.0.