diff --git a/beets/autotag/match.py b/beets/autotag/match.py
index 65ffc1da9..8453d2c9d 100644
--- a/beets/autotag/match.py
+++ b/beets/autotag/match.py
@@ -115,7 +115,7 @@ def match_by_id(album_id: str | None, consensus: bool) -> Iterable[AlbumInfo]:
         log.debug("No album ID consensus.")
     else:
         log.debug("Searching for discovered album ID: {}", album_id)
-        return metadata_plugins.albums_for_ids(album_id)
+        return metadata_plugins.albums_for_ids([album_id])
 
     return ()
 
@@ -203,7 +203,7 @@ def _add_candidate(
         return
 
     # Prevent duplicates.
-    if info.album_id and info.identifier in results:
+    if info.identifier in results:
         log.debug("Duplicate.")
         return
 
@@ -268,10 +268,9 @@ def tag_album(
 
     # Search by explicit ID.
     if search_ids:
-        for search_id in search_ids:
-            log.debug("Searching for album ID: {}", search_id)
-            for _info in metadata_plugins.albums_for_ids(search_id):
-                _add_candidate(items, candidates, _info)
+        log.debug("Searching for album IDs: {}", search_ids)
+        for _info in metadata_plugins.albums_for_ids(search_ids):
+            _add_candidate(items, candidates, _info)
 
     # Use existing metadata or text search.
     else:
@@ -343,17 +342,16 @@ def tag_item(
     # First, try matching by the external source ID.
     trackids = search_ids or [t for t in [item.mb_trackid] if t]
     if trackids:
-        for trackid in trackids:
-            log.debug("Searching for track ID: {}", trackid)
-            for info in metadata_plugins.tracks_for_ids(trackid):
-                dist = track_distance(item, info, incl_artist=True)
-                candidates[info.identifier] = hooks.TrackMatch(dist, info)
+        log.debug("Searching for track IDs: {}", trackids)
+        for info in metadata_plugins.tracks_for_ids(trackids):
+            dist = track_distance(item, info, incl_artist=True)
+            candidates[info.identifier] = hooks.TrackMatch(dist, info)
 
-            # If this is a good match, then don't keep searching.
-            rec = _recommendation(_sort_candidates(candidates.values()))
-            if rec == Recommendation.strong and not config["import"]["timid"]:
-                log.debug("Track ID match.")
-                return Proposal(_sort_candidates(candidates.values()), rec)
+        # If this is a good match, then don't keep searching.
+        rec = _recommendation(_sort_candidates(candidates.values()))
+        if rec == Recommendation.strong and not config["import"]["timid"]:
+            log.debug("Track ID match.")
+            return Proposal(_sort_candidates(candidates.values()), rec)
 
     # If we're searching by ID, don't proceed.
     if search_ids:
diff --git a/beets/metadata_plugins.py b/beets/metadata_plugins.py
index cf794d120..34f460735 100644
--- a/beets/metadata_plugins.py
+++ b/beets/metadata_plugins.py
@@ -49,17 +49,17 @@ def item_candidates(*args, **kwargs) -> Iterable[TrackInfo]:
 
 
 @notify_info_yielded("albuminfo_received")
-def albums_for_ids(_id: str) -> Iterable[AlbumInfo]:
+def albums_for_ids(ids: Sequence[str]) -> Iterable[AlbumInfo]:
     """Return matching albums from all metadata sources for the given ID."""
     for plugin in find_metadata_source_plugins():
-        yield from plugin.albums_for_ids([_id])
+        yield from plugin.albums_for_ids(ids)
 
 
 @notify_info_yielded("trackinfo_received")
-def tracks_for_ids(_id: str) -> Iterable[TrackInfo]:
+def tracks_for_ids(ids: Sequence[str]) -> Iterable[TrackInfo]:
     """Return matching tracks from all metadata sources for the given ID."""
     for plugin in find_metadata_source_plugins():
-        yield from plugin.tracks_for_ids([_id])
+        yield from plugin.tracks_for_ids(ids)
 
 
 @cache
diff --git a/test/autotag/test_match.py b/test/autotag/test_match.py
index 6538c35d4..995495222 100644
--- a/test/autotag/test_match.py
+++ b/test/autotag/test_match.py
@@ -1,5 +1,3 @@
-from typing import ClassVar
-
 import pytest
 
 from beets import metadata_plugins
@@ -107,10 +105,7 @@ class TestTagMultipleDataSources:
 
     @pytest.fixture(autouse=True)
     def _setup_plugins(self, monkeypatch, shared_album_id, shared_track_id):
-        class StubPlugin:
-            data_source: ClassVar[str]
-            data_source_mismatch_penalty = 0
-
+        class StubPlugin(metadata_plugins.MetadataSourcePlugin):
             @property
             def track(self):
                 return TrackInfo(
@@ -130,11 +125,11 @@ class TestTagMultipleDataSources:
                     data_source=self.data_source,
                 )
 
-            def albums_for_ids(self, *_):
-                yield self.album
+            def album_for_id(self, album_id):
+                return self.album if album_id == shared_album_id else None
 
-            def tracks_for_ids(self, *_):
-                yield self.track
+            def track_for_id(self, track_id):
+                return self.track if track_id == shared_track_id else None
 
             def candidates(self, *_, **__):
                 yield self.album