Rémy Learning ABC's

This is her first experience with these magnetic letters. I set them up last night so that when she woke up and came in the kitchen for breakfast she would find them.

I thought she knew six letters prior to this, but it turns out she knows ten: a, b, c, e, i, m, o, p, u, y

We have a set of flash cards we have used twice, other than that we sing the alphabet song every once in a while, so I am curious how she is picking these letters up so fast.