This work was commissioned by the Anglo-Austrian Music Society and was written in the last six months of 1966. It is dedicated to Nadia Boulanger for her 80th birthday - 16 September 1967.
| Instrument | Ensemble, Kammermusik |
| Genre (Fx Pop, Rock, Barn m.m.) | Post-1900 |
| Typ (fx Lärobok, samling m.m.) | Studie Partitur |
| Media | Noter |
| Publisher/Producent | Chester Music |
| Bidragsgivare | Musgrave, Thea (Artist) |
| Språk | Engelska |