CHORD SYMBOLS

Below is a list of the most common chord types with alternative symbols:

• The symbols in red are recommended as some of the others can be confusing (especially - for minor and alt for altered forms of 9 and 13.
• The triangle symbol can be useful for major7 (Δ or Δ7) when in a hurry, but be careful as it can sometimes look like a badly drawn o)
• The capital M for major 7 can also be confused for lower case m.

C major 7	Cmaj7	Cma7	CΔ or CΔ7	CM7
C minor 7	Cm7	Cmin7	C-7
C minor major 7	Cm maj7	Cmin ma7	C - Δ7	C -
C half diminished	Cø7	Cm7 b5	Cmin7 b5
C diminished (7)	Co (7)	C dim (7)
C7	C7
C9	C9
C11	C11	Gm7/C
C7 suspended 4th	C7 sus4
C13	C13
C7 augmented	C7 +	C7 aug	C7+5
C7 flat 5th	C7 b5	C7 -5
C7 #11	C7 #11	C7 +11
C7 flat 9th	C7 b9	C7 -9
C7 sharpened 9th	C7 #9	C7 +9
C7 flat 10th	C7 b10	C7 -10
C7 flat 9th flat 13th	C7 b9 b13	C7 alt
C7 flat 10th flat 13th	C7 b10 b13	C7 alt
C13 sharp 11th	C13 #11	C13 +11