Guitar chords · Diminished 7th
A°7 chord on guitar (Adim7)
A°7 (A Four notes stacked in minor 3rds, written °7. Every note is the same distance from the next, so the chord pulls hard to the chord a half step above any of its notes.) has four notes: A, C, E♭ and G♭, the The note a chord is named after and built up from. C is the root of C, Cm and C7., ♭3, ♭5 and 𝄫7.
Shapes
How to play A°7
Strum a shape to hear it, or pick it one string at a time. R marks the The note a chord is named after and built up from. C is the root of C, Cm and C7.; the other numbers are the chord tones.
A°7 has no common A chord played near the nut that uses some unfretted strings, such as the open G, C or Em.. Play it as the E shape at The metal strips across the neck, and the spaces between them. Each fret raises a string by one half step. 5 or the A shape at fret 12. A A chord or scale fingering with no open strings. Slide it up or down the neck and it changes its root but not its type: a major shape stays major. keeps its fingering anywhere on the neck: slide it up or down and the The note a chord is named after and built up from. C is the root of C, Cm and C7., on the lowest played string, names the chord.
E shape · fret 5
A shape · fret 12
Notes and formula
What makes A°7 diminished 7th
A Four notes stacked in minor 3rds, written °7. Every note is the same distance from the next, so the chord pulls hard to the chord a half step above any of its notes. chord stacks three minor 3rds, so every note is the same distance from the next. It is the vii°7 of the The natural minor scale with its 7th raised a half step, which makes the V chord major and gives it a strong pull home. and pulls hard to the chord a The smallest distance in Western music: one fret on the guitar, such as E to F or F to F♯. above its The note a chord is named after and built up from. C is the root of C, Cm and C7..
- 1Root: the note the chord is named after. Keep it.
- 3Essential: makes the chord what it is. Never drop it.
- 5Optional: drop it first when you run out of fingers.
The ♭3rd, the ♭5th and the 𝄫7th make A°7 a Four notes stacked in minor 3rds, written °7. Every note is the same distance from the next, so the chord pulls hard to the chord a half step above any of its notes. chord.
- ARroot
- C♭3essential
- E♭♭5essential
- G♭𝄫7essential
- A, the root
- Other chord tones
A°7 usually resolves up a The smallest distance in Western music: one fret on the guitar, such as E to F or F to F♯. to B♭ or B♭m, the chord it leads into. Its four notes are evenly spaced, so the same shape also works as C°7, D♯°7 and F♯°7, leading to D♭, E and G.
Keys
Keys with A°7
A°7 belongs to one key: B♭ minor (vii°7, The natural minor scale with its 7th raised a half step, which makes the V chord major and gives it a strong pull home.).
Numerals follow the key's own scale, so III, VI and VII in a minor key are its own major chords. A ♭ or ♯ in front marks a chord from outside the key. How Roman numerals work
Slash chords
A°7 over another bass note
A A chord with a different note in the bass, written after a slash: C/E is a C chord with E as its lowest note. The letter after the slash is the bass. keeps A°7 on top and puts another note in the bass: the letter after the slash is the lowest note you play.
- A°7/C
A°7 with its ♭3rd, C, in the bass: the first inversion.
- A°7/E♭
A°7 with its ♭5th, E♭, in the bass: the second inversion.
- A°7/G♭
A°7 with its 𝄫7th, G♭, in the bass: the third inversion.
Same root
Other chords on A
Change one or two notes and the same The note a chord is named after and built up from. C is the root of C, Cm and C7. gives a different colour. Compare them by ear.
- A major
- Am minor
- A7 dominant 7th
- Amaj7 major 7th
- Am7 minor 7th
- Asus2 suspended 2nd
- Asus4 suspended 4th
- A6 major 6th
- Am6 minor 6th
- Aadd9 add 9
- A9 dominant 9th
- Amaj9 major 9th
- Am9 minor 9th
- A13 dominant 13th
- Amaj13 major 13th
- Am11 minor 11th
- A° diminished
- Am7♭5 half-diminished 7th
- A+ augmented
- A5 power chord
- A7sus4 dominant 7th suspended 4th
- Am(maj7) minor major 7th
- A6/9 six-nine
- Am(add9) minor add 9
- A7♯9 dominant 7th sharp 9th
Questions
A°7, in short
- What notes are in the A°7 chord?
- A°7 (A Four notes stacked in minor 3rds, written °7. Every note is the same distance from the next, so the chord pulls hard to the chord a half step above any of its notes.) has four notes: A, C, E♭ and G♭, the The note a chord is named after and built up from. C is the root of C, Cm and C7., ♭3, ♭5 and 𝄫7.
- How do you play A°7 on guitar?
- A°7 has no common A chord played near the nut that uses some unfretted strings, such as the open G, C or Em.. Play it as the E shape at The metal strips across the neck, and the spaces between them. Each fret raises a string by one half step. 5 or the A shape at fret 12.
- What key is A°7 in?
- A°7 belongs to one key: B♭ minor (vii°7, The natural minor scale with its 7th raised a half step, which makes the V chord major and gives it a strong pull home.).