| Triads | Chord
Symbol (in C) | Chord Symbol (in Bb) | Formula (from the scale) | notes in chord (key of C) | notes in chord (key of Bb) | Alternate
Symbols (in Bb) | |
| Major | C | Bb | 1-3-5 | C - E - G | Bb - D - F | ||
| Minor | Cm | Bbm | 1-b3-5 | C - Eb - G | Bb - Db - F | Bb- | |
| Diminished | Cº | Bb º | 1-b3-b5 | C-Eb-Gb | Bb-Db-Fb | Bb dim | |
| Augmented | C + | Bb + | 1-3-#5 | C-E-G# | Bb-D-F# | Bb aug | |
| Four-note chords | Chord
Symbol (in C) | Chord Symbol (in
Bb) | Formula (from the scale) | notes
in chord (key of C) | notes in
chord (key of Bb) | Alternate Symbols (in Bb) | |
| Major Sixth | C6 | Bb6 | 1-3-5-6 | C - E - G - B | Bb - D - F - A | ||
| Minor Sixth | Cm6 | Bbm6 | 1-b3-5-6 | C - Eb-G - A | Bb - Db - F | Bb-6 | |
| Major 7th | Cmaj7 | Bbmaj7 | 1-3-5-7 | C - E - G - B | Bb - D - F - A | Bb ma7 | |
| 7th (dominant) | C7 | Bb7 | 1-3-5-b7 | C - E - G - Bb | Bb - D - F - Ab | ||
| Minor 7th | Cm7 | Bbm7 | 1-b3-5-b7 | C - Eb -G - Bb | Bb - Db - F - Ab | Bb-7 | |
| Minor 7 flat 5 | Cm7b5 | Bbm7b5 | 1-b3-b5-b7 | C - Eb-Gb - Bb | Bb - Db- Fb - Ab | Bb ø | |
| Minor-major 7th | Cmin-maj7 | Bbmin-maj7 | 1-b3-5-7 | C - Eb -G - B | Bb - Db - F - A | Bb mi-ma7 | |
| Diminished 7th | Cº7 | Bbº7 | 1-b3-b5-bb7 | C- Eb- Gb - A | Bb - Db- Fb - Abb | Bb dim 7 | |
| Augmented 7th | C+7 | Bb+7 | 1-3-#5-b7 | C - E - G# - Bb | Bb - D - F# - Ab | Bb aug 7 | |