diff --git a/.vscode/settings.json b/.vscode/settings.json
index ace0f19..2108a96 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -24,6 +24,7 @@
         "encyclopaedia",
         "ENDC",
         "Gitea",
+        "isrc",
         "levenshtein",
         "metallum",
         "musify",
diff --git a/music_kraken/objects/parents.py b/music_kraken/objects/parents.py
index 725e2c9..3ef6ab3 100644
--- a/music_kraken/objects/parents.py
+++ b/music_kraken/objects/parents.py
@@ -301,6 +301,33 @@ class OuterProxy:
 
         return r
 
+    @property
+    def root_collections(self) -> List[Collection]:
+        if len(self.UPWARDS_COLLECTION_STRING_ATTRIBUTES) == 0:
+            return [self]
+
+        r = []
+        for collection_string_attribute in self.UPWARDS_COLLECTION_STRING_ATTRIBUTES:
+            r.extend(self.__getattribute__(collection_string_attribute))
+
+        return r
+
+    def _compile(self, **kwargs):
+        pass
+
+    def compile(self, from_root=False, **kwargs):
+        # compile from the root
+        if not from_root:
+            for c in self.root_collections:
+                c.compile(from_root=True, **kwargs)
+            return
+
+        self._compile(**kwargs)
+
+        for c_attribute in self.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
+            for c in self.__getattribute__(c_attribute):
+                c.compile(from_root=True, **kwargs)
+
     TITEL = "id"
     @property
     def title_string(self) -> str:
diff --git a/music_kraken/objects/song.py b/music_kraken/objects/song.py
index beccb2d..8b5953b 100644
--- a/music_kraken/objects/song.py
+++ b/music_kraken/objects/song.py
@@ -376,6 +376,25 @@ class Album(Base):
             r += f" with {len(self.song_collection)} songs"
         return r
 
+    def _compile(self):
+        self.analyze_implied_album_type()
+        self.update_tracksort()
+
+    def analyze_implied_album_type(self):
+        # if the song collection has only one song, it is reasonable to assume that it is a single
+        if len(self.song_collection) == 1:
+            self.album_type = AlbumType.SINGLE
+            return
+
+        # if the album already has an album type, we don't need to do anything
+        if self.album_type is not AlbumType.OTHER:
+            return
+
+        # for information on EP's I looked at https://www.reddit.com/r/WeAreTheMusicMakers/comments/a354ql/whats_the_cutoff_length_between_ep_and_album/
+        if len(self.song_collection) < 9:
+            self.album_type = AlbumType.EP
+            return
+
     def update_tracksort(self):
         """
         This updates the tracksort attributes, of the songs in
@@ -525,6 +544,9 @@ class Artist(Base):
             self.label_collection.extend(object_list)
             return
 
+    def _compile(self):
+        self.update_albumsort()
+
     def update_albumsort(self):
         """
         This updates the albumsort attributes, of the albums in
@@ -535,9 +557,6 @@ class Artist(Base):
 
         :return:
         """
-        if len(self.main_album_collection) <= 0:
-            return
-
         type_section: Dict[AlbumType, int] = defaultdict(lambda: 2, {
             AlbumType.OTHER: 0,  # if I don't know it, I add it to the first section
             AlbumType.STUDIO_ALBUM: 0,
@@ -580,7 +599,7 @@ class Artist(Base):
             album_list.extend(sections[section_index])
 
         # replace the old collection with the new one
-        self.main_album_collection: Collection = Collection(data=album_list, element_type=Album)
+        self.main_album_collection._data = album_list
 
     INDEX_DEPENDS_ON = ("name", "source_collection", "contact_collection")
     @property
diff --git a/music_kraken/pages/abstract.py b/music_kraken/pages/abstract.py
index 4d123a9..a202b32 100644
--- a/music_kraken/pages/abstract.py
+++ b/music_kraken/pages/abstract.py
@@ -361,6 +361,7 @@ class Page:
         return download_result
 
     def _download_song(self, song: Song, naming_dict: NamingDict):
+        song.compile()
         if "genre" not in naming_dict and song.genre is not None:
             naming_dict["genre"] = song.genre
 
diff --git a/pyproject.toml b/pyproject.toml
index 62598b1..a569415 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ dependencies = [
     "toml~=0.10.2",
     "typing_extensions~=4.7.1",
 
-    "python-sponsorblock~=0.1.dev1",
+    "python-sponsorblock~=0.1",
     "youtube_dl",
 ]
 dynamic = [