The national anthem is a piece of music all Pegasi know. The melody will probably be familiar to you.

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Of course, it's now God Save the King. But it still fits.

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The King? Pray tell, has something befallen her Majesty Queen Haven?

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I mean the song itself in our universe. Doesn't the name change depending on the gender of the monarch? For G5. it's not changing for sure, since the next two in line for the throne are both mares.

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Twas joking...

The monarchs for the forseeable future in Zephyr Heights are indeed female (assuming Zipp has no male offspring).