diff --git a/modules/play_sort.py b/modules/play_sort.py
new file mode 100644
index 0000000..4a0ee1d
--- /dev/null
+++ b/modules/play_sort.py
@@ -0,0 +1,79 @@
+import random
+from . import log95, PlaylistModifierModule, Track, Path
+
+# The module loader injects this variable.
+# We assert it to satisfy static analysis and inform runtime about its presence.
+_log_out: log95.TextIO
+assert _log_out # pyright: ignore[reportUnboundVariable]
+
+def load_play_counts(file_path: Path) -> dict[str, int]:
+    """
+    Loads the play counts from the file generated by the play_counter module.
+    """
+    counts = {}
+    try:
+        with open(file_path, 'r') as file:
+            for line in file:
+                if line.strip() == "" or line.startswith(";"):
+                    continue
+                try:
+                    key, value = line.split(':', 1)
+                    counts[key.strip()] = int(value.strip())
+                except ValueError:
+                    # Ignore lines with invalid formats
+                    continue
+        return counts
+    except FileNotFoundError:
+        # It's okay if the file doesn't exist yet, means no counts have been recorded.
+        return {}
+
+class PopularitySorterModule(PlaylistModifierModule):
+    """
+    A playlist modifier that reorders tracks based on their play history.
+    For every pair of tracks, it gives a 60% probability to schedule the less-played track first.
+    """
+    def __init__(self) -> None:
+        self.logger = log95.log95("PopSort", output=_log_out)
+        # The play_counter file is located in the parent directory of the 'modules' folder.
+        self.play_counts_file = Path(__file__, "..", "..", "play_counter").resolve()
+
+    def modify(self, global_args: dict, playlist: list[Track]) -> list[Track]:
+        self.logger.info("Applying popularity-based sorting to the playlist...")
+        
+        play_counts = load_play_counts(self.play_counts_file)
+        if not play_counts:
+            self.logger.info("Play counter file not found or is empty. No sorting will be applied.")
+            return playlist
+
+        # We will iterate through the playlist, looking at two tracks at a time.
+        i = 0
+        while i < len(playlist) - 1:
+            track1 = playlist[i]
+            track2 = playlist[i+1]
+
+            # Get play counts for both tracks, defaulting to 0 if not found.
+            count1 = play_counts.get(track1.path.as_posix(), 0)
+            count2 = play_counts.get(track2.path.as_posix(), 0)
+
+            # Determine if the first track in the pair has been played less or an equal number of times.
+            is_track1_less_played = count1 <= count2
+
+            # With a 60% chance, we want the less popular song to come first.
+            if random.random() < 0.6:
+                # If the more popular song is currently first, swap them.
+                if not is_track1_less_played:
+                    playlist[i], playlist[i+1] = track2, track1
+            # With a 40% chance, we want the more popular song to come first.
+            else:
+                # If the less popular song is currently first, swap them.
+                if is_track1_less_played:
+                    playlist[i], playlist[i+1] = track2, track1
+            
+            # Move to the next pair of tracks.
+            i += 2
+
+        self.logger.info("Popularity sorting complete.")
+        return playlist
+
+# The radioPlayer will look for a 'playlistmod' variable to load the module.
+playlistmod = PopularitySorterModule()
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