diff --git a/src/TimeTrack.cpp b/src/TimeTrack.cpp
index 45bc6f3d6..29da30d71 100644
--- a/src/TimeTrack.cpp
+++ b/src/TimeTrack.cpp
@@ -59,8 +59,9 @@ TimeTrack::TimeTrack(DirManager *projDirManager):
 TimeTrack::TimeTrack(TimeTrack &orig):
    Track(orig)
 {
-   Init(orig);
+   Init(orig);	// this copies the TimeTrack metadata (name, range, etc)
 
+   ///@TODO: Give Envelope:: a copy-constructor instead of this?
    mEnvelope = new Envelope();
    mEnvelope->SetTrackLen(1000000000.0);
    SetInterpolateLog(orig.GetInterpolateLog()); // this calls Envelope::SetInterpolateDB
@@ -70,6 +71,7 @@ TimeTrack::TimeTrack(TimeTrack &orig):
    mEnvelope->SetRange(orig.mEnvelope->GetMinValue(), orig.mEnvelope->GetMaxValue());
    mEnvelope->Paste(0.0, orig.mEnvelope);
 
+   ///@TODO: Give Ruler:: a copy-constructor instead of this?
    mRuler = new Ruler();
    mRuler->SetLabelEdges(false);
    mRuler->SetFormat(Ruler::TimeFormat);
diff --git a/src/TimeTrack.h b/src/TimeTrack.h
index 488e756c4..058ef5620 100644
--- a/src/TimeTrack.h
+++ b/src/TimeTrack.h
@@ -27,6 +27,13 @@ class TimeTrack: public Track {
  public:
 
    TimeTrack(DirManager * projDirManager);
+   /** @brief Copy-Constructor - create a new TimeTrack:: which is an independent copy of the original
+    *
+    * Calls TimeTrack::Init() to copy the track metadata, then does a bunch of manipulations on the
+    * Envelope:: and Ruler:: members in order to copy one to the other - unfortunately both lack a
+    * copy-constructor to encapsulate this.
+    * @param orig The original track to copy from
+    */
    TimeTrack(TimeTrack &orig);
 
    virtual ~TimeTrack();
@@ -102,6 +109,11 @@ class TimeTrack: public Track {
    bool             mDisplayLog;
    bool             mRescaleXMLValues; // needed for backward-compatibility with older project files
 
+   /** @brief Copy the metadata from another track but not the points
+    *
+    * Copies the Name, DefaultName, Range and Display data from the source track
+    * @param orig the TimeTrack to copy from
+    */
    void Init(const TimeTrack &orig);
    virtual Track *Duplicate();