Hi Sorcha:
Dorcha means Dark, or of dark, as Sorcha means of light. So, Sorcha Dorcha is the Pavee version of Kali Maria, Black Mary, the Vlax Roma Saint/Goddess, who we carried out of India, combining Shiva the goddess of destruction and decay, with Ganesh (the very happy looking blue eliphant) who is the god of creation. Many years ago, I knew a wee girl from Donnegal who was working in a chipper in Kerry, who we called Sorcha Dorcha, as she was the image of Saint Sarah. She had jet black hair and startlingly white skin and bright blue eyes.
My bands web page is linked in on of bbcs resources, either profiles or the photopages, I forget, but if you go to the web site, you can see the image of the Pavee Sorcha I made for our band, combining eliments of Irish and Romani art.
Thanks again
Larry