| Voice classification | 1st Passaggio | 2nd Passaggio | |
|---|---|---|---|
| Tenor | Leggiero tenor | E4 (Eb4) | A4 (Ab4) |
| Lirico tenor | D4 | G4 | |
| Spinto tenor | D4 (D#4) | G4 (F#4) | |
| Drammatico tenor | C4 (C#4) | F4 (F#4) | |
| Baritone | Lirico baritone | B4 | E4 |
| Drammacixo baritone | Bb3 | Eb4 | |
| Bass | Cantabile bass | A3 | D4 |
| Profondo bass | Ab3 | Db4 | |