diff --git a/binding-mri/audio-binding.cpp b/binding-mri/audio-binding.cpp
index 262f5c7..59919ad 100644
--- a/binding-mri/audio-binding.cpp
+++ b/binding-mri/audio-binding.cpp
@@ -97,6 +97,15 @@ DEF_FADE( me )
 
 DEF_PLAY_STOP( se )
 
+RB_METHOD(audioSetupMidi)
+{
+	RB_UNUSED_PARAM;
+
+	shState->audio().setupMidi();
+
+	return Qnil;
+}
+
 RB_METHOD(audioReset)
 {
 	RB_UNUSED_PARAM;
@@ -135,6 +144,8 @@ audioBindingInit()
 	{
 	BIND_POS( bgm );
 	BIND_POS( bgs );
+
+	_rb_define_module_function(module, "setup_midi", audioSetupMidi);
 	}
 
 	BIND_PLAY_STOP( se )