| Title | When Oft at Twilight Hour (t) |
| Short Title | Riley Flute 3, 1820 |
| Page | 69 |
| Genre | AI |
| Country | A |
| Instruments | FL |
| Incipit | //32/17-16-//6-4-/5-6-//5-6-7-/11 |
| Stress Notes | 316551 |
| Intervals | -2,-2,-2,2,-3,-3,2,2,-2,2,2,2, |
| Key Signature | FU#,C# |
| Time Signature | C |
| Do | D |
| Date | [1820-1825] |
| Number | D6.219 |