1 files changed, 19 insertions, 0 deletions
diff --git a/old-examples/mp3/MP3.gf b/old-examples/mp3/MP3.gf
new file mode 100644
index 000000000..cc4dd882a
--- /dev/null
+++ b/old-examples/mp3/MP3.gf
@@ -0,0 +1,19 @@
+abstract MP3 = {
+  cat
+    Move ;
+    Song ;
+
+  fun
+    Play      : Song -> Move ;
+    CanPlay   : Song -> Move ;
+    WantPlay  : Song -> Move ;
+    WhichPlay : Move ;
+
+    ThisSong : Song ;
+    This   : Song ;
+
+    Yesterday : Song ;
+
+----    MkSong : String -> Song ;
+
+}