| Title | Impromptu, L' (t) |
| Short Title | Leclerc Recueil-3, 1738 |
| Page | 158 |
| Genre | IC |
| Country | F |
| Instruments | HAF |
| Incipit | /1234//565/4321//7-5-/51+7//65/ |
| Stress Notes | 154756 |
| Intervals | 2,2,2,2,2,-2,-2,-2,-2,-2,-2,-3,8,4,-2,-2,-2, |
| Key Signature | F#, C#, G# |
| Time Signature | 2 |
| Do | A |
| Date | 1738 |
| Number | K109.86 |