This breathtaking work, derived from unique fragments of plainchant from the 13th century, evokes a sense of serenity and peace. O Columba begins slowly and quietly with three verses of hymn in praise of St. Columba.
| Arrangement | SATB |
| Format | Score |
| Media | Sheet Music |
| Publisher | Boosey and Hawkes |
| Contributors | Johnston, Ken(Composer) |
| ISMN | 9790051477487 |
| UPC | 884088110697 |