| Title | What Have I Done (t) |
| Short Title | Johnson Flute, 1760 |
| Page | 14 |
| Genre | IC |
| Country | E |
| Instruments | GF |
| Incipit | //3453/11+//5+4+3+/2+5//67/1+543// |
| Stress Notes | 315261 |
| Intervals | 2,2,-3,-3,8,5,-2,-2,-2,-5,2,2,2,-4,-2,-2, |
| Key Signature | F#, C# |
| Time Signature | C |
| Do | DL |
| Date | [c.1760] |
| Number | K124.9 |