Will do Susanne,
I see Ian at least once a week. Avril's not shy about her singing (especially solo), she just gets embarrased when anyone praises her to her face. I should know, as I've been making music with her and Ian since about 1984.
In fact she is singing more on her own these days, as the Rads only play now and again, and she doesn't sing with the Govans, (she plays whistle).
love, john