Standards

Moon Rays chords & key

Key
E♭ major
Form
AAB
Bars
48
Groove
Latin
Time signature
4/4

“Moon Rays” is a jazz standard by Horace Silver. Most bands play it in E♭ major, latin; the tune runs 48 bars in AAB form. Harmonically it contains 5 major ii–V–I cadences and 5 minor ii–V–i, uses 23 different chords and moves between the key centres E♭ major, F minor, G major, A minor and G minor.

Chord changes

Showing in: Concert (C) — E♭ major

A
Fm7/B♭
B♭7
E♭maj7/B♭
E♭maj7/B♭
G♭m7
B7
Fm7
B♭7
Am7♭5
A♭m7
Gm7♭5
C7♭9
Fm7
B♭7
E♭maj7
1.
E♭maj7
2.
Bm7♭5B♭7
B
Am7
D7
Gmaj7
Gmaj7
B♭m7
E♭7
Am7
D7
D♭m7♭5
Cm7
Bm7♭5
E7♭9
Am7
D7♭9
Gm7C7
Fm7B♭7

Changes as commonly played (concert pitch). Your band's version may differ.

Harmonic analysis

5Major ii–V–I
5Minor ii–V–i
17ii–V moves
4Tritone substitutions
0Dominant chains
23Different chords

Most used chords

  • B♭7×8
  • Fm7×5
  • E♭maj7/B♭×4
  • E♭maj7×3
  • Am7×3
  • Fm7/B♭×2

Key centres reached by ii–V

E♭ major, F minor, G major, A minor and G minor

Standards with similar changes

Similarity of the chord progression, independent of key.

TitleComposerKeyFormGroove
Strollin' 20% Horace Silver D♭ major AA · 32 Medium swing

Frequently asked questions

What key is Moon Rays in?

Moon Rays is usually played in E♭ major. For B♭ instruments that is F major, for E♭ instruments C major.

Who wrote Moon Rays?

Moon Rays was written by Horace Silver.

What is the form of Moon Rays?

Moon Rays has 3 sections (AAB) with 48 bars in total.

How fast is Moon Rays played?

The usual groove is Latin.

What are the chord changes to Moon Rays?

The opening bars are Fm7/Bb | Bb7 | Ebmaj7/Bb | Ebmaj7/Bb. The full chart above can be transposed to any key.