x 4 3 4 2 x
C#7
Notes: C# · E# · G# · B
More common: Db7
Triads
Suspended
Sevenths
Extensions
Common shapes (4)
x 4 6 4 6 4
9 8 6 6 6 7
9 11 9 10 9 9
Other shapes (51)
Showing 12 of 51
x 4 3 4 0 x
x 4 3 4 0 4
x 4 3 1 0 x
x 4 3 1 0 1
x 4 3 1 0 4
x 4 3 4 0 1
x 4 3 6 0 x
x 4 3 6 0 4
x 4 6 4 6 x
x x 11 10 0 9
x 4 3 4 6 x
9 8 9 x 0 x
About C#7
C#7 is built from four notes: C# (root), E# (major third), G# (perfect fifth) and B (minor seventh). Its interval formula is 1 – 3 – 5 – b7. The minor seventh adds a tension that asks to resolve, which is why it is the typical chord on the fifth degree of a key.
C#7 has 4 common voicings, based on the C, A, G and E shapes of the CAGED system. The viewer also shows 51 more voicings, from easiest to hardest. Another way to write C#7 is Db7 (the same piano key, with a different name). The usual choice is Db7.