Index - I
| IambicumArchilochicum | Aedifico |
| IambicumEnneasyllabicum | Aedifico |
| IambicumEuripidaeum | Aedifico |
| Implicit | Aedifico |
| inputPerms | Fortuna |
| inputPhraseLengths | Lectio |
| intervals | Cogito.Musarithmetic |
| isAugFifth | Cogito.Ficta |
| isBflatInSignature | Cogito |
| isCrossRelation | Cogito.Ficta |
| isFictaAccid | Cogito.Ficta |
| isFictaAccidNote | Cogito.Ficta |
| isPitchRest | Cogito.Musarithmetic |
| isRest | Cogito.Musarithmetic |
| isToneLegalInPinax | Aedifico |
| isTritone | Cogito.Ficta |
| isTritoneNote | Cogito.Ficta |