diff --git a/app/cmScore.c b/app/cmScore.c
index f5186e6..ab2b8ca 100644
--- a/app/cmScore.c
+++ b/app/cmScore.c
@@ -2424,7 +2424,7 @@ cmScRC_t      cmScoreFileFromMidi( cmCtx_t* ctx, const cmChar_t* midiFn, const c
   
   cmErrSetup(&err,&ctx->rpt,"MIDI to Score");
 
-  if( cmMidiFileOpen(midiFn, &mfH, ctx ) != kOkMfRC )
+  if( cmMidiFileOpen(ctx, &mfH, midiFn ) != kOkMfRC )
     return cmErrMsg(&err,kMidiFileFailScRC,"Unable to open the MIDI file '%s'.",midiFn);
 
   if( cmCsvInitialize(&csvH,ctx) != kOkCsvRC )
@@ -2658,7 +2658,7 @@ void cmScoreFix( cmCtx_t* ctx )
   if( cmCsvParseFile(csvH, crfn, 0 ) != kOkCsvRC )
     goto errLabel;
 
-  if( cmMidiFileOpen(mfn,&mfH,ctx) != kOkMfRC )
+  if( cmMidiFileOpen(ctx,&mfH,mfn) != kOkMfRC )
     goto errLabel;
 
   mn = cmMidiFileMsgCount(mfH);
diff --git a/app/cmTakeSeqBldr.c b/app/cmTakeSeqBldr.c
index 6d1a9a6..1b000d3 100644
--- a/app/cmTakeSeqBldr.c
+++ b/app/cmTakeSeqBldr.c
@@ -949,7 +949,7 @@ cmTsbRC_t cmTakeSeqBldrLoadTake( cmTakeSeqBldrH_t h, unsigned tlMarkUid, bool ov
   }
 
   // open the MIDI file
-  if( cmMidiFileOpen( cmMidiFileName(mf->h), &mfH, &p->ctx ) != kOkMfRC )
+  if( cmMidiFileOpen( &p->ctx, &mfH, cmMidiFileName(mf->h) ) != kOkMfRC )
   {
     rc = cmErrMsg(&p->err,kInvalidArgTsbRC,"The MIDI file '%s' could not be opened.", cmStringNullGuard(cmMidiFileName(mf->h)));
     goto errLabel;
diff --git a/app/cmTimeLine.c b/app/cmTimeLine.c
index b40cbef..bc381d0 100644
--- a/app/cmTimeLine.c
+++ b/app/cmTimeLine.c
@@ -720,7 +720,7 @@ cmTlRC_t _cmTlAllocMidiFileRecd( _cmTl_t* p, const cmChar_t* nameStr, const cmCh
   fn = cmFsMakeFn( p->prefixPath, fn, NULL, NULL );
 
   // open the midi file
-  if( cmMidiFileOpen(fn, &mfH, &p->ctx ) != kOkMfRC )
+  if( cmMidiFileOpen(&p->ctx, &mfH, fn ) != kOkMfRC )
     return cmErrMsg(&p->err,kMidiFileFailTlRC,"The time line midi file '%s' could not be opened.",cmStringNullGuard(fn));
 
   // force the first msg to occurr one quarter note into the file
diff --git a/cmMidiFile.c b/cmMidiFile.c
index 2476aa1..65fabef 100644
--- a/cmMidiFile.c
+++ b/cmMidiFile.c
@@ -445,7 +445,7 @@ cmMfRC_t _cmMidiFileClose( _cmMidiFile_t* mfp )
 }
 
 
-cmMfRC_t cmMidiFileOpen( const char* fn, cmMidiFileH_t* hPtr, cmCtx_t* ctx )
+cmMfRC_t cmMidiFileOpen( cmCtx_t* ctx, cmMidiFileH_t* hPtr, const char* fn )
 {
   cmMfRC_t       rc     = kOkMfRC;
   _cmMidiFile_t* mfp    = NULL;
@@ -1445,7 +1445,7 @@ void cmMidiFilePrintControlNumbers( cmCtx_t* ctx, const char* fn )
   cmMidiFileH_t h = cmMidiFileNullHandle;
   cmMfRC_t rc;
 
-  if((rc = cmMidiFileOpen(fn, &h, ctx )) != kOkMfRC )
+  if((rc = cmMidiFileOpen(ctx, &h, fn )) != kOkMfRC )
   {
     cmErrMsg(&ctx->err,rc,"MIDI file open failed on '%s'.",fn);
     goto errLabel;
@@ -1475,7 +1475,7 @@ void cmMidiFileTest( const char* fn, cmCtx_t* ctx )
   cmMfRC_t      rc;
   cmMidiFileH_t h = cmMidiFileNullHandle;
 
-  if((rc = cmMidiFileOpen(fn,&h,ctx)) != kOkMfRC )
+  if((rc = cmMidiFileOpen(ctx,&h,fn)) != kOkMfRC )
   {
     printf("Error:%i Unable to open the cmMidi file: %s\n",rc,fn);
     return;
diff --git a/cmMidiFile.h b/cmMidiFile.h
index 7dfcd93..286efc9 100644
--- a/cmMidiFile.h
+++ b/cmMidiFile.h
@@ -106,7 +106,7 @@ extern "C" {
 
   extern cmMidiFileH_t cmMidiFileNullHandle;
 
-  cmMfRC_t              cmMidiFileOpen( const char* fn, cmMidiFileH_t* hPtr, cmCtx_t* ctx );
+  cmMfRC_t              cmMidiFileOpen( cmCtx_t* ctx, cmMidiFileH_t* hPtr, const char* fn );
   cmMfRC_t              cmMidiFileClose( cmMidiFileH_t* hp );
 
   cmMfRC_t              cmMidiFileWrite( cmMidiFileH_t h, const char* fn );
diff --git a/cmMidiFilePlay.c b/cmMidiFilePlay.c
index 56b1ea4..7a2d2f1 100644
--- a/cmMidiFilePlay.c
+++ b/cmMidiFilePlay.c
@@ -107,7 +107,7 @@ cmMfpRC_t cmMfpLoadFile(   cmMfpH_t h, const char* fn )
   cmMfp_t*      p    = _cmMfpHandleToPtr(h);
   cmMidiFileH_t mfH  = cmMidiFileNullHandle;
 
-  if((rc = cmMidiFileOpen( fn, &mfH, &p->ctx )) != kOkMfRC )
+  if((rc = cmMidiFileOpen( &p->ctx, &mfH, fn  )) != kOkMfRC )
     return _cmMfpError(p,kFileOpenFailMfpRC);
 
   if((rc= cmMfpLoadHandle( h, mfH )) == kOkMfpRC )
diff --git a/dsp/cmDspKr.c b/dsp/cmDspKr.c
index e47e8cb..a63b31a 100644
--- a/dsp/cmDspKr.c
+++ b/dsp/cmDspKr.c
@@ -773,7 +773,7 @@ cmDspRC_t _cmDspMidiFilePlayOpen(cmDspCtx_t* ctx, cmDspInst_t* inst )
   if( fn==NULL || strlen(fn)==0 )
     return rc;
 
-  if( cmMidiFileOpen( fn, &p->mfH, ctx->cmCtx ) != kOkFileRC )
+  if( cmMidiFileOpen( ctx->cmCtx, &p->mfH, fn ) != kOkFileRC )
     rc = cmErrMsg(&inst->classPtr->err, kInstResetFailDspRC, "MIDI file open failed.");
   else
   {