diff --git a/beets/ui/__init__.py b/beets/ui/__init__.py
index 993964291..1e64cd89c 100644
--- a/beets/ui/__init__.py
+++ b/beets/ui/__init__.py
@@ -989,29 +989,3 @@ def main(args=None):
     except KeyboardInterrupt:
         # Silently ignore ^C except in verbose mode.
         log.debug(traceback.format_exc())
-
-
-
-def summarize_items(items):
-    """Produces a brief summary line for manually resolving duplicates during import.
-    Accepts a list of tuples, one per item containing:
-    (path, format, bitrate, duration)
-    """
-
-    summary_text = ""
-    summary_text += "%d items. " % len(items)
-    format_counts = {}
-    for item in items:
-        format_counts[item[1]] = format_counts.get(item[1],0) + 1;
-
-    for format, count in format_counts.iteritems():
-        summary_text += '{count} {format}. '.format(format=format, count=count)
-
-    average_bitrate = sum([item[2] for item in items]) / len(items)
-    total_duration = sum([item[3] for item in items])
-    summary_text += '{bitrate}kbps average bitrate. '.format(bitrate=int(average_bitrate/1000))
-    summary_text += '{length} total length. '.format(length=human_seconds_short(total_duration))
-
-    return summary_text
-
-
diff --git a/beets/ui/commands.py b/beets/ui/commands.py
index 0cc3bcf9d..4a27bc522 100644
--- a/beets/ui/commands.py
+++ b/beets/ui/commands.py
@@ -424,6 +424,32 @@ def show_item_change(item, match):
     print_(' '.join(info))
 
 
+def summarize_items(items):
+    """Produces a brief summary line describing a set of items. Used for
+    manually resolving duplicates during import.
+    """
+    summary_parts = []
+    summary_parts.append("{0} items".format(len(items)))
+
+    format_counts = {}
+    for item in items:
+        format_counts[item.format] = format_counts.get(item.format, 0) + 1
+    if len(format_counts) == 1:
+        # A single format.
+        summary_parts.append(items[0].format)
+    else:
+        # Enumerate all the formats.
+        for format, count in format_counts.iteritems():
+            summary_parts.append('{0} {1}'.format(format, count))
+
+    average_bitrate = sum([item.bitrate for item in items]) / len(items)
+    total_duration = sum([item.length for item in items])
+    summary_parts.append('{0}kbps'.format(int(average_bitrate / 1000)))
+    summary_parts.append(ui.human_seconds_short(total_duration))
+
+    return ', '.join(summary_parts)
+
+
 def _summary_judment(rec):
     """Determines whether a decision should be made without even asking
     the user. This occurs in quiet mode and when an action is chosen for
@@ -753,12 +779,11 @@ class TerminalImportSession(importer.ImportSession):
             log.info('Skipping.')
             sel = 's'
         else:
-            # print some detail about the existing and new items so it can be an informed decision
+            # Print some detail about the existing and new items so the
+            # user can make an informed decision.
             for duplicate in found_duplicates:
-                old_items = [(item.path, item.format, item.bitrate, item.length) for item in duplicate.items()]
-                print("OLD: " + ui.summarize_items(old_items))
-            new_items = [(item.path, item.format, item.bitrate, item.length) for item in task.items]
-            print("NEW: " + ui.summarize_items(new_items))
+                print("Old: " + summarize_items(list(duplicate.items())))
+            print("New: " + summarize_items(task.items))
 
             sel = ui.input_options(
                 ('Skip new', 'Keep both', 'Remove old')
diff --git a/beets/util/__init__.py b/beets/util/__init__.py
index ec3a3c1bc..428de312a 100644
--- a/beets/util/__init__.py
+++ b/beets/util/__init__.py
@@ -25,6 +25,7 @@ import traceback
 import subprocess
 import platform
 
+
 MAX_FILENAME_LENGTH = 200
 WINDOWS_MAGIC_PREFIX = u'\\\\?\\'