C# ADD11 - PIANO

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Chord composition

I III V XI
Root Major third Perfect fifth Perfect eleventh
C# F G# F#

ALL ABOUT THE C# ADD11 CHORD

Chord Composition

The C# Add11 chord is composed of 4 notes :

  • C# (Root)
  • F (Major third)
  • G# (Perfect fifth)
  • F# (Perfect eleventh)

These notes form a major chord with added eleventh, creating rich modal texture.

How to play C# Add11 on piano

The add11 chord C# Add11 adds the eleventh (equivalent to the fourth an octave higher) to the major triad, without seventh.

  • Modal color: strongly evokes mixolydian mode
  • Less common: rarer than add9, but very effective
  • Dense texture: the 11th creates rich and complex sound
  • Progressive rock and jazz: used for sophisticated harmonies

The add11 chord offers an interesting alternative to add9, with a more modal and less conventional color.

Common uses of C# Add11

The add11 chord has specific uses:

  • Progressive rock: complex harmonies
  • Jazz fusion: rich modal colors
  • Contemporary music: dense harmonic textures

Styles

Progressive rock: complex and modal sounds.

Jazz fusion: enriches modal voicings.

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