diff --git a/cwIoMidiRecordPlay.cpp b/cwIoMidiRecordPlay.cpp
index 387962f..f11557d 100644
--- a/cwIoMidiRecordPlay.cpp
+++ b/cwIoMidiRecordPlay.cpp
@@ -341,7 +341,7 @@ namespace cw
           }
 
         if( !after_stop_time_fl and p->cb )
-          p->cb( p->cb_arg, id, timestamp, loc, ch, status, d0, d1 );
+          p->cb( p->cb_arg, kMidiEventActionId, id, timestamp, loc, ch, status, d0, d1 );
 
         if( log_fl && p->logOutFl )
         {
@@ -739,6 +739,9 @@ namespace cw
         
       }
 
+      if( p->cb != nullptr )
+        p->cb( p->cb_arg, kPlayerStoppedActionId, kInvalidId, t1, kInvalidId, 0, 0, 0, 0 );
+
       return rc;
     }
     
diff --git a/cwIoMidiRecordPlay.h b/cwIoMidiRecordPlay.h
index 2bdabc1..85a1f87 100644
--- a/cwIoMidiRecordPlay.h
+++ b/cwIoMidiRecordPlay.h
@@ -19,8 +19,13 @@ namespace cw
       uint8_t       d1;
     } midi_msg_t;
 
+    enum {
+      kMidiEventActionId,
+      kPlayerStoppedActionId
+    };
 
-    typedef void (*event_callback_t)( void* arg, unsigned id, const time::spec_t timestamp, unsigned loc, uint8_t ch, uint8_t status, uint8_t d0, uint8_t d1 );
+
+    typedef void (*event_callback_t)( void* arg, unsigned actionId, unsigned id, const time::spec_t timestamp, unsigned loc, uint8_t ch, uint8_t status, uint8_t d0, uint8_t d1 );
     
     
     rc_t create( handle_t& hRef, io::handle_t ioH, const object_t& cfg, event_callback_t cb=nullptr, void* cb_arg=nullptr );