Figure 1

Musical example 1

Musical example 2

Musical example 3

Musical example 4

Musical example 5

Number of arias in Hasse's Siroe settings and in their sources
| Venice 1726 Vinci | Naples 1727 Sarro | Bologna 1733 Hasse | Dresden 1763 Hasse | |
|---|---|---|---|---|
| Cosroe | 5 | 5 | 4 | 3 |
| Siroe | 5 | 5 | 5 | 4 |
| Medarse | 5 | 4 | 4 | 3 |
| Emira | 5 | 5 | 4 | 4 |
| Laodice | 5 | 5 | 4 | 3 |
| Arasse | 2 | 3 | 3 | 3 |
| Total no. of arias | 27 | 27 | 24 | 20 |
Arias in Hasse's Siroe settings compared with their sources
| Venice 1726 Vinci | Bologna 1733 Hasse | Naples 1727 Sarro | Dresden 1763 Hasse | |
|---|---|---|---|---|
| Total arias | 27 | 24 | 27 | 20* |
| Arias on texts by Metastasio | 27 | 16 + 3 from Porpora's and Sarro's Siroe | 27 | 16,5 |
| Arias appearing both in Hasse 1733 and 1763 (texts only) | 13 |
