If the Euro appreciates against the Songland dollar, it will lead to an increase in Songland's aggregate demand because its exports will become cheaper for Eurozone countries.

When the Euro appreciates against the Songland dollar, it means that one Euro can buy more Songland dollars than before. This change makes products from Songland cheaper for people in Eurozone countries, encouraging them to buy more of Songland's goods. As a result, Songland's exports will likely increase because foreign buyers find them more affordable. For example, if a Songland-made toy costs 10 Songland dollars, and the Euro is strong, it might only cost 8 Euros for a buyer in Europe. This increase in exports boosts Songland's overall economic activity, leading to higher aggregate demand in the country.