Chord symbols

Chord symbols with names and intervals.

To specify of what type a chord is, i.e. which intervals the chord is built of, chord symbols are used.

The table below shows an overview of chord symbols used to describe chords of different types.

It includes the symbols, the names of the chord symbols, the intervals a chord of a specific type is built of, and examples of chords of different types.

SymbolExampleIntervalName
maj, ΔC1, 3, 5Major
m, -, miAmi, Am, A-, Ami1, b3, 5Minor
+, augC+1, 3, #5
Augmented
º, dimDº, Ddim1, b3, b5Diminished
7
G71, 3, 5, b7Dominant seventh
Δ, maj7CΔ, Cmaj71, 3, 5, 7Major seventh
mi7, m7Am71, b3, 5, b7Minor seventh
ø, m7-5, m7b5Cø, Cm7-5, Cm7b51, b3, b5, b7Minor seventh
flat five
º7, dim7Dº7, Ddim71, b3, b5, bb7
bb7=6
Diminished seventh (*)
6C61, 3, 5, 6Sixth
susDsus41, 4, 5Suspended
noC7no5
(**)
1, 3, b7No
addCadd91, 3, 5, 9Add
maj9,Δ9Cmaj9, FΔ91, 3, 5, 7, 9Major ninth, Major 9th
9C91, 3, 5, b7, 9Ninth, 9th
m9, mi9, -9Cm9, Fmi9, G-91, b3, 5, b7, 9Minor ninth, Minor 9th
/C/GThe C chord
with alternate bass
G
Alternate bass

(*) dim usually refers to dim7 although the 7 isn’t specified.
(**) The fifth is removed from the chord.