diff --git a/src/kc/kcApp.cpp b/src/kc/kcApp.cpp
index e1ad79e..e20ea9e 100644
--- a/src/kc/kcApp.cpp
+++ b/src/kc/kcApp.cpp
@@ -62,6 +62,7 @@
 #include "cmGrFltk.h"
 #include "gvHashFunc.h"
 #include "cmGrTksbFltk.h"
+#include "cmGr2dFltk.h"
 
 
 #define TIMER_PERIOD (1.0/20.0)   // 50ms
@@ -1395,6 +1396,55 @@ void kcApp::_setTksrValue( ctl_t* cp, unsigned instVarId, const cmDspValue_t* vp
     }
 }
 
+void kcApp::_createTwod(  const cmDspUiHdr_t* m )
+{
+  int x,y,w=0,h=0;
+
+  page_t* pg = _createPage("2-D");
+
+  ctl_t*  cp = _createCtl(m, kTwodTypeId, x,y,w,h, true );
+
+  w = pg->grp->w();
+  h = pg->grp->h();
+
+  // currently we only support one Take sequence builder control because
+  // we have not yet implmenented a method of providing
+  // timer callbacks to a list of UI controls
+  if( _tlCtl != NULL )
+    cp->u.twod.tlctl = _tlCtl;
+  else
+  {
+    _tlCtl = new tlCtl(_ctx,this,_menu,this);
+
+    cp->u.twod.tlctl  = _tlCtl; 
+  }
+
+  Fl_Widget* wdgt = cp->u.twod.tlctl->init2dCtlr(x,y,w,h);
+
+  _insertNewCtl(cp,m,wdgt,cp->u.twod.varIdArray,kTwodVarCnt);
+
+}
+
+void kcApp::_setTwodValue( ctl_t* cp, unsigned instVarId, const cmDspValue_t* vp )
+{
+  unsigned i;
+
+  for(i=0; i<kTwodVarCnt; ++i)
+    if( cp->u.twod.varIdArray[i] == instVarId )
+    {
+      switch(i)
+      {
+        case kTwodXArgIdx:
+        case kTwodYArgIdx:
+        case kTwodAngleArgIdx:
+        case kTwodRadiusArgIdx:
+          break;
+
+        default:
+          { assert(0); }
+      }
+    }
+}
 
 void kcApp::_newColumn( const cmDspUiHdr_t* m )
 {
@@ -1809,6 +1859,10 @@ void kcApp::_onRecvValue( const cmDspUiHdr_t* m )
       _setTksrValue(cp, m->instVarId, &m->value);
       break;
 
+    case kTwodTypeId:
+      _setTwodValue(cp, m->instVarId, &m->value);
+      break;
+
     default:
       assert(0);
   }
@@ -1874,6 +1928,10 @@ void kcApp::_handleUiMsg( const cmDspUiHdr_t* m )
       _createTksr(m);
       break;
 
+    case kTwodDuiId:
+      _createTwod(m);
+      break;
+
     case kValueDuiId:
       _onRecvValue(m);
       break;
@@ -2301,6 +2359,40 @@ void kcApp::_ctl_cb(ctl_t* cp)
 
     case kTksrTypeId:
       {
+        
+      }
+      break;
+
+    case kTwodTypeId:
+      {
+        cmGr2dFltk* twodCtl = dynamic_cast<cmGr2dFltk*>(cp->wdgtPtr);
+
+        unsigned i;
+        for(i=0; i<kTwodVarCnt; ++i)
+        {
+          switch( i )
+          {
+            case kTwodXArgIdx:
+              cmDsvSetDouble(&value,twodCtl->x());
+              break;
+
+            case kTwodYArgIdx:
+              cmDsvSetDouble(&value,twodCtl->y());
+              break;
+
+            case kTwodAngleArgIdx:
+              cmDsvSetDouble(&value,twodCtl->angle());
+              break;
+
+            case kTwodRadiusArgIdx:
+              cmDsvSetDouble(&value,twodCtl->radius());
+              break;
+          }
+
+          cmAdIfSendMsgToAudioDSP(_aiH,cp->asSubIdx,kUiSelAsId,kValueDuiId,0,cp->instId,cp->u.twod.varIdArray[i],&value);
+        }
+
+        instVarId = cmInvalidId;
       }
       break;
       
diff --git a/src/kc/kcApp.h b/src/kc/kcApp.h
index 8bd029c..3f170ca 100644
--- a/src/kc/kcApp.h
+++ b/src/kc/kcApp.h
@@ -79,6 +79,7 @@ private:
     kScorTypeId,
     kTksbTypeId,
     kTksrTypeId,
+    kTwodTypeId,
 
     kSldrMinArgIdx = 0,
     kSldrMaxArgIdx = 1,
@@ -146,7 +147,13 @@ private:
     kTksrPtrArgIdx     = 0,
     kTksrRefreshArgIdx = 1,
     kTksrSelArgIdx     = 2,
-    kTksrVarCnt        = 3
+    kTksrVarCnt        = 3,
+
+    kTwodXArgIdx       = 0,
+    kTwodYArgIdx       = 1,
+    kTwodRadiusArgIdx  = 2,
+    kTwodAngleArgIdx   = 3,
+    kTwodVarCnt        = 4
 
   }; 
 
@@ -264,6 +271,12 @@ private:
     unsigned   varIdArray[ kTksrVarCnt ];
   } tksr_t;
 
+  typedef struct twod_str
+  {
+    tlCtl* tlctl;
+    unsigned varIdArray[ kTwodVarCnt ];
+  } twod_t;
+
 
   typedef struct ctl_str
   {
@@ -287,6 +300,7 @@ private:
       scor_t     scor;
       tksb_t     tksb;
       tksr_t     tksr;
+      twod_t     twod;
     } u;
     struct ctl_str* linkPtr;
   } ctl_t;
@@ -385,6 +399,8 @@ private:
   void          _setTksbValue( ctl_t* cp, unsigned instVarId, const cmDspValue_t* vp );
   void          _createTksr(  const cmDspUiHdr_t* m );
   void          _setTksrValue( ctl_t* cp, unsigned instVarId, const cmDspValue_t* vp );
+  void          _createTwod(  const cmDspUiHdr_t* m );
+  void          _setTwodValue( ctl_t* cp, unsigned instVarId, const cmDspValue_t* vp );
 
 
   void          _newColumn( const cmDspUiHdr_t* m );