Amaj9 chord
Amaj9 chord for guitar with diagrams, fingerings and notes.
All chords More A chordsDescription and theory
Amaj9 is usually played as one of the movable shapes depending on the most suitable position on the fretboard, or played in open positions.
Chord structure
The chord consists of five notes. The notes represent the root, major third, perfect fifth, major seventh and major ninth intervals. Notice that the fifth is sometimes omitted. In some cases could the third be omitted, for example when the chord is played as X02100.
Chord name
Amaj9 is an abbreviation for A major ninth. A less common abbreviation is AM9. A third system is the triangle (delta) symbol: A△9.
Notes
The notes that the Amaj9 chord consists of are A, C#, E, G# and B.
Chord progressions
Dmaj7 - Amaj9 - E6
Inversions
1st inversion: Amaj9/C# (means that C# is the bass note).
2nd inversion: Amaj9/E (means that E is the bass note).
3rd inversion: Amaj9/G# (means that G# is the bass note).
4th inversion: Amaj9/B (means that B is the bass note).
Omissions
Amaj9(no3) is an A major 9th with no third (C#).
Amaj9(no5) is an A major 9th with no fifth (E).