ArpeggiosEN

Arpeggio quality

maj9

The major ninth chord extends the major seventh with a ninth, adding a layer of shimmer above an already luminous harmony. The seventh still supplies the soft pull toward the root, while the ninth floats a whole step higher, bright and bell-like. This is the sound of smooth jazz, neo-soul and modern gospel: rich but not crowded, because the fifth is usually the first note players drop when the voicing gets tight. Arpeggiated in one position, it spreads five notes across a comfortable stretch. Listen for the ninth sitting on top of the seventh — it is the note that makes the chord sound wide rather than merely tall.

Formula
1 3 5 7 9
Notes
C♯ E♯ G♯ B♯ D♯
Family
Major

Notation in C♯

representative key
441357

Fretboard — frets 0–12

C♯ maj9 — frets 0 to 12, 30 notes, roots in orange3571971935571939357171935357190123456789101112
C♯ maj9 — frets 0 to 12, 30 notes, roots in orange3571971935571939357171935357190123456789101112

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Same family

How to practise this arpeggio

  • Play the ninth last and let it float above the seventh.
  • Comp the shape in a high position to hear the ninth as the melody note.
  • Omit the fifth and check that the chord still sounds complete.
  • Loop it over a static major chord and improvise with the top two notes.