| Title | Air 49 (t) |
| Short Title | Decoy, 1733 |
| Page | T63M15 |
| Genre | BA |
| Country | E |
| Instruments | VO |
| Incipit | //535/1+3+//2+75/61+//53 |
| Indicated Tune | In Perseus and Andromeda (it) |
| First Line | Must I then leave thee (fl) |
| Theatre Works | Perseus and Andromeda |
| Stress Notes | 51265 |
| Intervals | -3,3,4,3,-2,-3,-3,2,3,-4,-3, |
| Key Signature | Bb |
| Time Signature | 6/4 |
| Do | F |
| Date | 1733 |
| Nota Bene | Music numbered air 48 |
| Number | R113.49 |