diff --git a/app/cmTimeLine.c b/app/cmTimeLine.c
index 3f36079..eb93dd4 100644
--- a/app/cmTimeLine.c
+++ b/app/cmTimeLine.c
@@ -48,17 +48,18 @@ typedef struct
 
 typedef struct
 {
-  cmErr_t     err;
-  cmCtx_t     ctx;
-  cmLHeapH_t  lH;
-  double      srate;
-  unsigned    nextSeqId;
-  cmTlCb_t    cbFunc;
-  void*       cbArg;
-  unsigned    nextUId;
-  char*       tmpBuf;  
-  unsigned    seqCnt;
-  _cmTlSeq_t*  seq;    // seq[seqCnt]
+  cmErr_t         err;
+  cmCtx_t         ctx;
+  cmLHeapH_t      lH;
+  double          srate;
+  unsigned        nextSeqId;
+  cmTlCb_t        cbFunc;
+  void*           cbArg;
+  unsigned        nextUId;
+  char*           tmpBuf;  
+  unsigned        seqCnt;
+  _cmTlSeq_t*     seq;          // seq[seqCnt]
+  const cmChar_t* filename;
 } _cmTl_t;
 
 typedef struct
@@ -922,12 +923,15 @@ cmTlRC_t   cmTimeLineInitializeFromFile( cmCtx_t* ctx, cmTlH_t* hp, cmTlCb_t cbF
   if((rc = cmTimeLineInitialize(ctx,hp,cbFunc,cbArg)) != kOkTlRC )
     return rc;
 
-  //_cmTl_t* p = _cmTlHandleToPtr(*hp);
-  //_cmTlNotifyListener(p, kInitMsgTlId, NULL );
-
   return  cmTimeLineReadJson(*hp,fn);
 }
 
+const cmChar_t* cmTimeLineFileName( cmTlH_t h )
+{ 
+  _cmTl_t* p = _cmTlHandleToPtr(h);  
+  return p->filename; 
+}
+
 cmTlRC_t cmTimeLineFinalize( cmTlH_t* hp )
 {
   cmTlRC_t rc;
@@ -1218,6 +1222,7 @@ cmTlRC_t cmTimeLineReadJson(  cmTlH_t h, const cmChar_t* ifn )
     
   }
   
+  p->filename = cmLhAllocStr(p->lH,ifn);
 
  errLabel:
   if( rc != kOkTlRC )
diff --git a/app/cmTimeLine.h b/app/cmTimeLine.h
index ea640bb..c20d0fa 100644
--- a/app/cmTimeLine.h
+++ b/app/cmTimeLine.h
@@ -101,22 +101,24 @@ extern "C" {
   extern cmTlH_t cmTimeLineNullHandle;
 
   // 
-  cmTlRC_t   cmTimeLineInitialize( cmCtx_t* ctx, cmTlH_t* hp, cmTlCb_t cbFunc, void* cbArg );
-  cmTlRC_t   cmTimeLineInitializeFromFile( cmCtx_t* ctx, cmTlH_t* hp, cmTlCb_t cbFunc, void* cbArg, const cmChar_t* fn );
+  cmTlRC_t        cmTimeLineInitialize( cmCtx_t* ctx, cmTlH_t* hp, cmTlCb_t cbFunc, void* cbArg );
+  cmTlRC_t        cmTimeLineInitializeFromFile( cmCtx_t* ctx, cmTlH_t* hp, cmTlCb_t cbFunc, void* cbArg, const cmChar_t* fn );
 
-  cmTlRC_t   cmTimeLineFinalize( cmTlH_t* hp );
+  const cmChar_t* cmTimeLineFileName( cmTlH_t h );
 
-  bool       cmTimeLineIsValid( cmTlH_t h );
-  double     cmTimeLineSampleRate( cmTlH_t h );
+  cmTlRC_t        cmTimeLineFinalize( cmTlH_t* hp );
+
+  bool            cmTimeLineIsValid( cmTlH_t h );
+  double          cmTimeLineSampleRate( cmTlH_t h );
 
   // Return the object following 'p' assigned to 'seqId'.
   // If 'p' is NULL then return the first object assigned to seqId.
   // If 'seqId' is set to cmInvalidId then return the next object on any seq.
   // If no objects follow 'p' on the specified sequence then return NULL.
-  cmTlObj_t* cmTimeLineNextObj( cmTlH_t h, cmTlObj_t* p, unsigned seqId );
+  cmTlObj_t*       cmTimeLineNextObj( cmTlH_t h, cmTlObj_t* p, unsigned seqId );
 
   // Same as cmTimeLineNextObj() but returns next object whose type matches 'typeId'.
-  cmTlObj_t* cmTimeLineNextTypeObj( cmTlH_t h, cmTlObj_t* p, unsigned seqId, unsigned typeId );
+  cmTlObj_t*       cmTimeLineNextTypeObj( cmTlH_t h, cmTlObj_t* p, unsigned seqId, unsigned typeId );
 
   cmTlMidiFile_t*  cmTlNextMidiFileObjPtr(  cmTlH_t h, cmTlObj_t* op, unsigned seqId );
   cmTlAudioFile_t* cmTlNextAudioFileObjPtr( cmTlH_t h, cmTlObj_t* op, unsigned seqId );