Master Table of Figured Bass, Inversion Symbols, and Standard Four-Part Doubling Conventions
Consult this table when working with figured bass, inversion symbols used with Roman numerals, and doubling conventions when writing in four parts.
| Chord Type | Position/Inversion | Bass Note | Figured | Bass | Doubling Convention | Roman Numeral Inversion Symbol |
| Abbreviated | Complete | |||||
| Triad | Root | Root | [nothing] | 5 | Root | The inversion symbols are the same |
| 3 | as the abbreviated figured bass. | |||||
| 1st Inversion | Third | 6 | 6 | Any member except l.t. | ||
| 3 | ||||||
| 2nd Inversion | Fifth | 6 | 6 | 5th (the bass) | ||
| 4 | 4 | |||||
| Seventh | Root | Root | 7 | 7 | All members present | |
| 5 | ||||||
| 3 | ||||||
| 1st Inversion | Third | 6 | 6 | All members present | ||
| 5 | 5 | |||||
| 3 | ||||||
| 2nd Inversion | Fifth | 4 | 6 | All members present | ||
| 3 | 4 | |||||
| 3 | ||||||
| 3rd Inversion | Seventh | 2 or 4 | 6 | All members present | ||
| 2 | 4 | |||||
| 2 |