I am the sister, the other Mozart. And her story is mine.”
-- Hyacinth (Introduction )

Importance: Nannerl is introducing the story, including the fact that she has often gone to the land she knows as the Kingdom of Back and that she is the sister of the famous Wolfgang Amadeus Mozart. She cites the fact that people know her brother's name and his music, but says they have also heard her music without realizing it.

The girl with the glass pendant. I heard your wish.”
-- Hyacinth (The Boy from Another World )

Importance: This is the first conversation between Nannerl and Hyacinth, and the reference to the pendant reinforces its symbolism as a lucky charm. His statement also makes it clear that his presence has to do with the wish she made that she would be talented enough that she is never forgotten.

This was the song of God he yearned for, emerging from the small hands of his son. My affection...
-- Nannerl (The Princeling in the Grotto )