“Hiyoku” is a poetic word, originally used by the ancient Chinese poet, Bai Juyi, later adopted by Japanese authors. It means two birds flying together with the connotation of eternal love.
| Arrangement | Clarinet Duet |
| Media | Book(softcover, stapled) |
| Publisher | Boosey and Hawkes |
| Contributors | Carter, Elliott(Composer) |
| ISBN | 9781423410355 |
| ISMN | 9790051104383 |
| UPC | 884088054595 |