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diff --git a/website/sandbox/chord-drill-sergeant/src/ChordInspector.elm b/website/sandbox/chord-drill-sergeant/src/ChordInspector.elm
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+++ b/website/sandbox/chord-drill-sergeant/src/ChordInspector.elm
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+module ChordInspector exposing (render)
+
+import Html exposing (..)
+import Theory
+
+
+render : Theory.Chord -> Html a
+render chord =
+    case Theory.notesForChord chord of
+        Nothing ->
+            p [] [ text "Cannot retrieve the notes for the chord." ]
+
+        Just notes ->
+            ul []
+                (notes
+                    |> List.map
+                        (\note ->
+                            li []
+                                [ text
+                                    (Theory.viewNote
+                                        note
+                                    )
+                                ]
+                        )
+                )