diff --git a/src/sleepywaves.py b/src/sleepywaves.py
index 6baeb7b..550f5a8 100644
--- a/src/sleepywaves.py
+++ b/src/sleepywaves.py
@@ -43,6 +43,8 @@ class TitleConfig(BaseModel):
     mode: Optional[PlayMode] = None
     timeout: Optional[int] = None
     resume_track: Optional[bool] = True
+    tracks: Optional[List[str]] = None
+    start_times: Optional[Dict[str, int]] = None
 
 
 class TitleStatus(BaseModel):
@@ -55,14 +57,9 @@ class Title:
     tag_id: int
     config: TitleConfig
     status: TitleStatus
-    tracks: list[str]
 
 
 class Renderer(ABC):
-    @abstractmethod
-    def get_tracks(self, path: str) -> list[str]:
-        pass
-
     @abstractmethod
     def play(self, path: str, from_time: int) -> None:
         pass
@@ -153,18 +150,29 @@ class Player:
 
     def advance(self) -> None:
         assert self.current_title is not None
+        assert self.current_title.config.tracks is not None
         track_id = (
-            self.current_title.tracks.index(self.current_title.status.last_track)
+            self.current_title.config.tracks.index(self.current_title.status.last_track)
             if self.current_title.status.last_track
             else -1
         )
         log.debug(f"advance from #{track_id}: {self.current_title.status.last_track}")
         if self.current_title.config.mode == "sequence":
-            track_id = (track_id + 1) % len(self.current_title.tracks)
+            track_id = (track_id + 1) % len(self.current_title.config.tracks)
         elif self.current_title.config.mode == "random":
-            track_id = randrange(0, len(self.current_title.tracks), 1)
-        self.current_title.status.last_track = self.current_title.tracks[track_id]
+            track_id = randrange(0, len(self.current_title.config.tracks), 1)
+        self.current_title.status.last_track = self.current_title.config.tracks[
+            track_id
+        ]
         self.current_title.status.last_time = 0
+        if (
+            self.current_title.config.start_times is not None
+            and self.current_title.status.last_track
+            in self.current_title.config.start_times
+        ):
+            self.current_title.status.last_time = self.current_title.config.start_times[
+                self.current_title.status.last_track
+            ]
         log.debug(f"advance to #{track_id}: {self.current_title.status.last_track}")
 
     def start_playing(self) -> None:
@@ -233,7 +241,6 @@ class Player:
                 tag_id=tag_id,
                 config=cfg,
                 status=self.get_title_status(tag_id),
-                tracks=self.renderer.get_tracks(self.get_title_path(tag_id)),
             )
             if (
                 self.current_title.status.last_track == ""
@@ -300,10 +307,6 @@ class MpdRenderer(Renderer):
         # self.start: int = 0
         # self.offset: int = 0
 
-    def get_tracks(self, path: str) -> list[str]:
-        all_files = os.listdir(path)
-        return sorted([f for f in all_files if (f.endswith(".mp3") or f.endswith(".flac"))])
-
     def play(self, path: str, from_time: int) -> None:
         log.info(f"MpdRenderer: play({path}, {from_time})")
         self.mpd.clear()