Major ninth with ♯11 (1–3–5–7–9–♯11); Lydian brightness on major harmony.
Intervals from the root that spell this chord and its chord tones.
Parent scales and degrees where this chord appears as a diatonic sonority.
Scales that contain this chord’s notes and usually fit over it.
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The major ninth sharp eleventh chord extends maj9 with a raised eleventh (1-3-5-7-9-♯11). The ♯11 is the same pitch class as ♯4, giving a classic Lydian color: floating, modern, and very common in jazz and contemporary film music on Imaj♯11 or IVmaj♯11 contexts.
Start from maj9 and add ♯11. In Cmaj9(♯11), ♯11 is F♯.
Lydian vamps, jazz tonic colors, and pop production for “wide sky” major moods.
Keep the major third clear; voice ♯11 high; omit the fifth if needed.
Major ninth sound with a Lydian ♯11 sparkle on top.
| Interval | semitones | Note | ||
|---|---|---|---|---|
| 0 | A♯ | |||
| 4 | C𝄪 | |||
| 7 | E♯ | |||
| 11 | G𝄪 | |||
| 14 | B♯ | |||
| 18 | D𝄪 |
| Degree | Triad | Seventh | Extended | Scale | |
|---|---|---|---|---|---|
| I | |||||
| II | |||||
| III | |||||
| IV | |||||
| V | |||||
| VI | |||||
| VII |
These modes come from a defined series of intervals! Checkout our blogpost about the major modes!