I. On Willows II. On Birches Written to commemorate the career of Boston Symphony harpist Ann Hobson Pilot, and inspired by Psalm 137 and poet Robert Frost.
| Genres | Classical |
| Format | Score and Parts |
| NumberOfPages | 32 |
| Media | Sheet Music |
| Series | John Williams Sign. String |
| Publisher | Hal Leonard |
| Contributors | Williams, John(Composer) |
| ISBN | 9781423493198 |
| UPC | 3555111302552 |