diff --git a/src/stage/timeline/body-canvas-widget.cpp b/src/stage/timeline/body-canvas-widget.cpp
index 7e4632563..362270d2c 100644
--- a/src/stage/timeline/body-canvas-widget.cpp
+++ b/src/stage/timeline/body-canvas-widget.cpp
@@ -215,14 +215,13 @@ namespace timeline {
     
     template<class PINT, bool isRuler>
     auto
-    makeRenderer (DisplayManager& layout, TrackProfile& profile)
+    makeRenderer (DisplayManager& layout, BodyCanvasWidget::ProfileGetter& getProfile)
       {
         return [&](CairoC cox)
                 {
                   PINT concreteRenderScheme{cox, layout};
                   /////////////////////////////////////////////////////////////////////////////////TICKET #1039 : find out a way how to select the header/body part of the profile!
-                  profile.performWith (concreteRenderScheme);
-                  //^^^^^//////////////////////////////////////////////////TODO: need accessor-function here; attach it somehow to establishTrackProfile()
+                  getProfile().performWith (concreteRenderScheme);
                 };
       }
     
@@ -246,12 +245,20 @@ namespace timeline {
     , profile_{}
     , rootBody_{nullptr}
     , contentArea_{}
-    , rulerCanvas_{makeRenderer<Grounding, RULER>(layout_,profile_), makeRenderer<Overlay, RULER>(layout_,profile_)}
-    , mainCanvas_ {makeRenderer<Grounding, BODY>(layout_,profile_),  makeRenderer<Overlay, BODY>(layout_,profile_)}
+    , rulerCanvas_{makeRenderer<Grounding, RULER>(layout_,getProfile), makeRenderer<Overlay, RULER>(layout_,getProfile)}
+    , mainCanvas_ {makeRenderer<Grounding, BODY>(layout_,getProfile),  makeRenderer<Overlay, BODY>(layout_,getProfile)}
     {
       // respond to any structure changes of the timeline by recomputing the TrackProfile
       layout_.signalStructureChange_.connect (sigc::mem_fun (*this, &BodyCanvasWidget::slotStructureChange));
       
+      // access and possible (re)establish the current "profile" of the tracks on demand...
+      getProfile = [this]() -> TrackProfile&
+                        {
+                          if (rootBody_ and isnil (profile_))
+                            rootBody_->establishTrackSpace (profile_);
+                          return profile_;
+                        };
+      
       this->set_border_width (0);
       this->property_expand() = true;       // dynamically grab any available additional space
       this->pack_start (rulerCanvas_);
@@ -277,7 +284,7 @@ namespace timeline {
   
   /**
    * The Lumiera Timeline model does not rely on a list of tracks, as most conventional video editing software does --
-   * rather, each sequence holds a _fork of nested scopes._ This recursively nested structure is reflected in the way
+   * rather, each sequence holds a _fork of nested scopes._ This recursively nested structure is parallelled in the way
    * we organise and draw the timeline representation onto the TimelineCanvas: we use an intermediary entity, the TrackBody
    * as an organisational grouping device, even while we draw _all of the timeline representation_ onto a single global
    * #mainCanvas_ within the (scrollable) #contentArea_. Thus, adding the first TrackBody to represent the root track
@@ -298,21 +305,6 @@ namespace timeline {
   }
   
   
-  /**
-   * 
-   */
-  TrackProfile&
-  BodyCanvasWidget::establishTrackProfile()
-  {
-    if (rootBody_)
-      {
-        if (isnil (profile_))
-          rootBody_->establishTrackSpace (profile_);
-      }
-    return profile_;   //////////////////////////////////////////////////////////////////////////////////////TICKET #1039 : who actually invokes this function? what if not(rootBody_)?
-  }
-  
-  
   
   
   TimelineCanvas::TimelineCanvas (_Renderer groundingFac, _Renderer overlayFac)
diff --git a/src/stage/timeline/body-canvas-widget.hpp b/src/stage/timeline/body-canvas-widget.hpp
index f60e52042..b40908051 100644
--- a/src/stage/timeline/body-canvas-widget.hpp
+++ b/src/stage/timeline/body-canvas-widget.hpp
@@ -128,10 +128,13 @@ namespace timeline {
           return contentArea_.get_vadjustment();
         }
       
+      /** a way to get and possibly (re)compute the current TrackProfile */
+      using ProfileGetter = std::function<TrackProfile&()>;
+      ProfileGetter getProfile;
+      
     private:/* ===== Internals ===== */
       
       void slotStructureChange()  noexcept;
-      TrackProfile& establishTrackProfile();
     };
   
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 4cf0e52b0..a07bb19e6 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -20806,7 +20806,33 @@
 <node CREATED="1561049205709" ID="ID_87098848" MODIFIED="1561049213673" TEXT="bisher direkte Referenz">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1561049214764" ID="ID_1962267741" MODIFIED="1561049222012" TEXT="neue L&#xf6;sung gesucht">
+<node COLOR="#338800" CREATED="1561049214764" ID="ID_1962267741" MODIFIED="1561139793452" TEXT="neue L&#xf6;sung: getter-Funktion">
+<icon BUILTIN="button_ok"/>
+</node>
+<node CREATED="1561139816451" ID="ID_1820580687" MODIFIED="1561139824487" TEXT="gef&#xe4;llt mir aber noch nicht">
+<icon BUILTIN="messagebox_warning"/>
+<node CREATED="1561139829332" ID="ID_730637336" MODIFIED="1561139839310" TEXT="rein logisch geh&#xf6;rt das Profil ja schon hier her"/>
+<node CREATED="1561139846988" ID="ID_565918975" MODIFIED="1561139974752" TEXT="aber der ganze Update-Mechanismus ist ein in sich abgekapselter Belang">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      und macht sich aber hier im Quellcode &#252;ber mehrere Funktionen verteilt breit,
+    </p>
+    <p>
+      ohne da&#223; man ihn hier komplett &#252;berblicken kann. Dazu kommt, da&#223; die ganze Verdrahterei
+    </p>
+    <p>
+      &#252;ber zwei Lambdas hinweg auch nicht besonders <i>geradlinig</i>&#160;und verst&#228;ndlich ist
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1561139978982" ID="ID_1098160043" MODIFIED="1561139990042" TEXT="doch in den Layout-Manager verschieben?">
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>