A major ninth sharp eleventh chord is composed using a root/1st, major 3rd, perfect 5th, major 7th, major 9th and augmented 11th (or R/1-3-5-7-9-♯11) intervals played simultaneously. Generally written as CMA9(♯11) or Cma9(+11), it is good practice to simply use an uppercase C, then the uppercase letters MA, followed by a super scripted 9(♯11) to represent it in writing (ie: CMA9(♯11)).
Major ninth sharp eleventh chord profile
|Intervals||root/1st, major 3rd, perfect 5th, major 7th, major 9th, augmented 11th or R/1-3-5-7-9-♯11|
|Stability||Somewhat dissonant, resolved|
|Common names (examples in C)||CMA9(♯11), Cma9(+11)|
|C Major ninth sharp eleventh chord voicing #4|