Standards
Unit Seven chords & key
- Key
- C major
- Form
- AABA
- Bars
- 44
- Groove
- Medium-up swing
- Time signature
- 4/4
“Unit Seven” is a jazz standard by Sam Jones. It is usually played in C major as a medium-up swing, and the 44-bar AABA form has 4 sections. Harmonically it contains no major ii–V–I cadences and 1 minor ii–V–i, uses 14 different chords.
Chord changes
Showing in: Concert (C) — C major
A
1.
2.
B
A
Changes as commonly played (concert pitch). Your band's version may differ.
Harmonic analysis
0Major ii–V–I
1Minor ii–V–i
4ii–V moves
3Tritone substitutions
13Dominant chains
14Different chords
Most used chords
- C7×18
- F7×6
- G7♯9×5
- A7♯9×3
- A♭maj7×3
- A7×3
Characteristics
- AABA song form
Standards with similar changes
Similarity of the chord progression, independent of key.
| Title | Key |
|---|---|
| Relaxin' At Camarillo 37% | C major |
| Brotherhood Of Man 28% | E♭ major |
| Bags' Groove 27% | F major |
| Sandu 27% | E♭ major |
| Rhythm-a-ning 26% | B♭ major |
| Sun down 26% | A major |
| Barbados 25% | F major |
| Route 66 25% | F major |
Frequently asked questions
What key is Unit Seven in?
Unit Seven is usually played in C major. For B♭ instruments that is D major, for E♭ instruments A major.
Who wrote Unit Seven?
Unit Seven was written by Sam Jones.
What is the form of Unit Seven?
Unit Seven has 4 sections (AABA) with 44 bars in total.
How fast is Unit Seven played?
The usual groove is Medium-up swing.
What are the chord changes to Unit Seven?
The opening bars are C7 | C7 | C7 | C7. The full chart above can be transposed to any key.