tiny changes

src/mussty/__main__.py

@@ -4,3 +4,4 @@
 
 if __name__ == "__main__":
     resolver = Resolver((AppleMusic, Spotify))
+    resolver.resolve()

src/mussty/resolver.py

@@ -18,21 +18,18 @@ def __init__(self, types: tuple[type, type], config: dict = {}) -> None:
             f"Converting content from service {types[0].__name__} to service {types[1].__name__}"
         )
 
-        service_a = types[0]()
-        service_b = types[1]()
-
-        service_a.get_user_content()
-        service_b.get_user_content()
+        self.service_a = types[0]()
+        self.service_b = types[1]()
 
+        self.hydrate_services()
 
     def resolve(self):
-        pass
+        self.resolve_songs()
 
     def hydrate_services(self):
         self.service_a.get_user_content()
         self.service_b.get_user_content()
 
-
     def resolve_songs(self):
         target_song_ids = set(self.service_a.songs.keys()) - set(
             self.service_b.songs.keys()