Excellent open string support
| Degree | Roman | Chord | Quality | Notes |
|---|---|---|---|---|
| 1 | i° | C° | Diminished | CEbGb |
| 2 | ii° | Db° | Diminished | DbFbAbb |
| 3 | iii° | Eb° | Diminished | EbGbBbb |
| 4 | iv° | Fb° | Diminished | FbAbbCbb |
| 5 | v° | Gb° | Diminished | GbBbbC |
| 6 | vi° | Abb° | Diminished | AbbCbbDb |
| 7 | vii° | Bbb° | Diminished | BbbCEb |
| 8 | viii° | Cbb° | Diminished | CbbDbFb |
| Degree | Roman | Chord | Quality | Notes |
|---|---|---|---|---|
| 1 | i°7 | C°7 | Diminished7 | CEbGbBbb |
| 2 | ii°7 | Db°7 | Diminished7 | DbFbAbbCbb |
| 3 | iii°7 | Eb°7 | Diminished7 | EbGbBbbC |
| 4 | iv°7 | Fb°7 | Diminished7 | FbAbbCbbDb |
| 5 | v°7 | Gb°7 | Diminished7 | GbBbbCEb |
| 6 | vi°7 | Abb°7 | Diminished7 | AbbCbbDbFb |
| 7 | vii°7 | Bbb°7 | Diminished7 | BbbCEbGb |
| 8 | viii°7 | Cbb°7 | Diminished7 | CbbDbFbAbb |