"Ailein duinn" ("Dark-haired Alan") is a traditional Scottish Gaelic song for solo female voice, a lament that was written for Ailean Moireasdan ("Alan Morrison") by his fiancée, Annag Chaimbeul ("Annie Campbell").
In the spring of 1788, he left Stornoway to go to Scalpay, Harris, where he was to be engaged to Annag Chaimbeul ("Annie Campbell").
Unfortunately, they sailed into a storm and all the crew sank with the vessel, off the coast of the Shiant Islands.
The broken-hearted Annag wasted away through grief and composed this lament for her lost love.
However, a storm caused the coffin to be blown off her father's boat and it washed up on the same island her fiancé's body had been found.