Aamh isn’t talked about much in Book 1, but she is very important to one of the characters central to Book 2. There is a little more about her in Book 3, and she makes an appearance in Book 4.
Her domain is music, song, and all things celestial. Her followers value wisdom and a sense of awe and wonder. They are kind, thoughtful, nurturing, and non-violent.
She brought the Starr to Lorata; a race of angelic beings who embody her light, wisdom, affection, and love for creativity and the arts.