Standards
Isotope chords & key
- Key
- C major
- Form
- A
- Bars
- 12
- Groove
- Medium-up swing
- Time signature
- 4/4
“Isotope” is a jazz standard by Joe Henderson. Most bands play it in C major, medium-up swing; the tune runs 12 bars in A form. Its changes follow the 12-bar blues.
Chord changes
Showing in: Concert (C) — C major
In
×2A
Changes as commonly played (concert pitch). Your band's version may differ.
Harmonic analysis
0Major ii–V–I
0Minor ii–V–i
2ii–V moves
0Tritone substitutions
15Dominant chains
12Different chords
Most used chords
- C7×16
- G7×7
- A7×6
- E♭7×5
- F7×3
- B♭7×3
Characteristics
- 12-bar blues
Frequently asked questions
What key is Isotope in?
Isotope is usually played in C major. For B♭ instruments that is D major, for E♭ instruments A major.
Who wrote Isotope?
Isotope was written by Joe Henderson.
What is the form of Isotope?
Isotope has 1 sections (A) with 12 bars in total.
How fast is Isotope played?
The usual groove is Medium-up swing.
What are the chord changes to Isotope?
The opening bars are C7 A7 | Eb7 D7 | G7 C7 | G7 C7. The full chart above can be transposed to any key.