If you happen to have a copy of the Clannad album, "Fuaim", and you check the credits, you'll see the name Eithne Ní Bhraonáin who played keyboards and contributed vocals. She joined the group that already had her older sister Máire and brothers Pól and Ciarán in it for that album and is pictured on the front cover group portait.

This was Enya, before she went solo and adopted the "new" name.