| Title | Air 15 (t) |
| Short Title | Silvia, 1731 |
| Page | 18 |
| Genre | BA |
| Country | E |
| Instruments | VO |
| Incipit | //3343//2232//17-6-7-12//3 |
| Indicated Tune | Twenty-Third of April, The (it) |
| First Line | So unkind and so unwilling (fl) |
| Stress Notes | 3213 |
| Intervals | 2,-2,-2,2,-2,-2,-2,-2,2,2,2,2, |
| Time Signature | 3/4 |
| Do | C |
| Date | 1731 |
| Number | R13.15 |