x 4 3 1 4 x
C#add9
Notes: C# · E# · G# · D#
More common: Dbadd9
Triads
Suspended
Sevenths
Extensions
Other shapes (26)
Showing 12 of 26
x 4 3 x 4 4
x 4 3 6 4 x
x 4 1 1 x 1
x 4 1 x 2 1
x 4 x 1 4 1
x 4 1 x 4 1
x 4 3 x 4 1
x 4 1 1 2 1
x 4 1 1 4 1
9 8 6 8 x x
x x 11 10 9 11
About C#add9
C#add9 is built from four notes: C# (root), E# (major third), G# (perfect fifth) and D# (ninth). In scale degrees above the root, the formula is 1 – 3 – 5 – 9. The added ninth gives the major chord an open, modern color, widely used in pop and rock.
C#add9 has no standard open shape in the CAGED system, so its 26 voicings are sorted only by difficulty and position on the neck. C#add9 is also written as Dbadd9: the same chord with the root spelled differently, and it sounds identical. The more common spelling is Dbadd9.