Scottish Harp Anthology
In three volumes (Elementary, Intermediate & Advanced) these books were a collection of arrangements and compositions by 19 of Scotland's finest harpists, compiled and edited by Ailie Robertson. Karen's composition Gealach a' Bhruic (Badger's Moon) is in book 1; Miss Farquharson of Invercauld's Reel [Mackintosh Collection] and Locked Up Harps/Locked Out Harpers in book 2; and Helen's Farewell in book 3. These are now all* on the Trinity exam syllabus and are available as individual PDFs.
*apart from Miss Farquharson of Invercauld's Reel, the first piece in the set of two tunes in the book, so it is not on the exam pdf.