C# Dominant Thirteen Sharp Eleventh (C#13(#11)) chords on guitar
C#13(#11) (C# thirteenth sharp eleven) follows the formula 1, 3, 5, b7, 9, #11, 13, so on C# it reads C#, E#, G#, B, D#, F## and A#.
Stack it in thirds from the root and you pass the ninth D#, the raised eleventh F## and the thirteenth A#. If you know ninth chords, this chord builds on a dominant ninth with the raised eleventh and the thirteenth added. The C# Lydian Dominant scale holds exactly the same seven notes.
The raised eleventh replaces the natural eleventh, which would rub against the major third E#.
C# 13th with sharp 11th guitar chord is also written as C#13(#11), C#13#11 or C#13+11.
C# 13(#11) chord Notes:
How the Dominant Thirteen Sharp Eleventh chord is built:
Formula: 1 3 5 b7 9 #11 13
Download
the Free Guitar Chords Chart Pdf
Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which notes does C#13(#11) contain?
C#13(#11) is spelled C#, E#, G#, B, D#, F## and A#. It stacks a major third, perfect fifth, minor seventh, ninth, sharp eleventh and thirteenth over C#.
Do C#13(#11) and Db13(#11) sound identical?
Yes, they are one chord with two spellings. Db13(#11) uses Db, F, Ab, Cb, Eb, G and Bb, so no double sharp is needed.
Why is the sharp eleventh in C#13(#11) written F##?
The perfect eleventh over C# is F#, since the letter F is four steps up from C. Raising it a half step gives F##, which sounds like G.
What scale can I play over C#13(#11)?
The C# Lydian Dominant scale has C#, D#, E#, F##, G#, A# and B. It matches the chord tone for tone.
