diff --git a/gtk2_ardour/editor_drag.cc b/gtk2_ardour/editor_drag.cc
index faed9a6ed2..d0f477e471 100644
--- a/gtk2_ardour/editor_drag.cc
+++ b/gtk2_ardour/editor_drag.cc
@@ -3525,7 +3525,7 @@ MeterMarkerDrag::finished (GdkEvent* event, bool movement_occurred)
 	_editor->set_snap_mode (_old_snap_mode);
 
 	XMLNode &after = map->get_state();
-	_editor->session()->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), before_state, &after));
+	_editor->session()->add_command (new Temporal::TempoCommand (_("move time signature"), before_state, &after));
 	_editor->commit_reversible_command ();
 
 	TempoMap::update (map);
@@ -3655,7 +3655,7 @@ TempoMarkerDrag::finished (GdkEvent* event, bool movement_occurred)
 	TempoMap::update (map);
 	XMLNode &after = map->get_state();
 
-	_editor->session()->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), _before_state, &after));
+	_editor->session()->add_command (new Temporal::TempoCommand (_("move tempo"), _before_state, &after));
 	_editor->commit_reversible_command ();
 }
 
@@ -3825,7 +3825,7 @@ BBTRulerDrag::finished (GdkEvent* event, bool movement_occurred)
 
 	XMLNode &after = map->get_state();
 
-	_editor->session()->add_command(new MementoCommand<TempoMap>(new Temporal::TempoMap::MementoBinder(), _before_state, &after));
+	_editor->session()->add_command (new Temporal::TempoCommand (_("move BBT point"), _before_state, &after));
 	_editor->commit_reversible_command ();
 }
 
@@ -3957,7 +3957,7 @@ TempoTwistDrag::finished (GdkEvent* event, bool movement_occurred)
 
 	TempoMap& map (_editor->session()->tempo_map());
 	XMLNode &after = map.get_state();
-	_editor->session()->add_command(new MementoCommand<TempoMap>(map, _before_state, &after));
+	_editor->session()->add_command (new Temporal::TempoCommand (_("twist tempo"), _before_state, &after));
 	_editor->commit_reversible_command ();
 }
 
@@ -4058,7 +4058,7 @@ TempoEndDrag::finished (GdkEvent* event, bool movement_occurred)
 	TempoMap::update (map);
 
 	XMLNode &after = map->get_state();
-	_editor->session()->add_command(new MementoCommand<TempoMap>(new Temporal::TempoMap::MementoBinder(), _before_state, &after));
+	_editor->session()->add_command (new Temporal::TempoCommand (_("move tempo end"), _before_state, &after));
 	_editor->commit_reversible_command ();
 
 	TempoPoint const * prev = 0;
diff --git a/gtk2_ardour/editor_markers.cc b/gtk2_ardour/editor_markers.cc
index 04941312d3..3a6b911bdb 100644
--- a/gtk2_ardour/editor_markers.cc
+++ b/gtk2_ardour/editor_markers.cc
@@ -1620,7 +1620,7 @@ Editor::toggle_tempo_type ()
 		tmap->set_ramped (const_cast<Temporal::TempoPoint&>(tempo), !tempo.ramped());
 
 		XMLNode &after = tmap->get_state();
-		_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+		_session->add_command (new Temporal::TempoCommand (_("change tempo type"), &before, &after));
 		commit_reversible_command ();
 
 		TempoMap::update (tmap);
@@ -1646,7 +1646,7 @@ Editor::toggle_tempo_clamped ()
 		const_cast<Temporal::Tempo&>(tempo).set_clamped (!tempo.clamped());
 
 		XMLNode &after = tmap->get_state();
-		_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+		_session->add_command (new Temporal::TempoCommand (_("change tempo clamp"), &before, &after));
 		commit_reversible_command ();
 
 		TempoMap::update (tmap);
@@ -1673,7 +1673,7 @@ Editor::ramp_to_next_tempo ()
 		tmap->set_ramped (const_cast<Temporal::TempoPoint&>(tempo), !tempo.ramped());
 
 		XMLNode &after = tmap->get_state();
-		_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+		_session->add_command (new Temporal::TempoCommand (_("changed tempo ramp"), &before, &after));
 		commit_reversible_command ();
 
 		TempoMap::update (tmap);
diff --git a/gtk2_ardour/editor_ops.cc b/gtk2_ardour/editor_ops.cc
index 3b896065d0..30d089e418 100644
--- a/gtk2_ardour/editor_ops.cc
+++ b/gtk2_ardour/editor_ops.cc
@@ -7371,7 +7371,7 @@ Editor::define_one_bar (timepos_t const & start, timepos_t const & end)
 
 	XMLNode& after (tmap->get_state());
 
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+	_session->add_command (new Temporal::TempoCommand (_("set tempo from range"), &before, &after));
 	commit_reversible_command ();
 
 	TempoMap::update (tmap);
@@ -8316,7 +8316,7 @@ Editor::insert_time (
 		XMLNode& before (tmap->get_state());
 		tmap->insert_time (pos, samples);
 		XMLNode& after (tmap->get_state());
-		_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+		_session->add_command (new Temporal::TempoCommand (_("insert time"), &before, &after));
 
 		TempoMap::update (tmap);
 	}
@@ -8498,7 +8498,7 @@ Editor::remove_time (timepos_t const & pos, timecnt_t const & duration, InsertTi
 				in_command = true;
 			}
 			XMLNode& after (tmap->get_state());
-			_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+			_session->add_command (new Temporal::TempoCommand (_("remove time"), &before, &after));
 
 			TempoMap::update (tmap);
 		}
diff --git a/gtk2_ardour/editor_tempodisplay.cc b/gtk2_ardour/editor_tempodisplay.cc
index e4f715e1fc..387e90f46f 100644
--- a/gtk2_ardour/editor_tempodisplay.cc
+++ b/gtk2_ardour/editor_tempodisplay.cc
@@ -602,7 +602,7 @@ Editor::mouse_add_new_tempo_event (timepos_t pos)
 
 		map->set_tempo (map->tempo_at (pos), pos);
 		XMLNode &after = map->get_state();
-		_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+		_session->add_command (new Temporal::TempoCommand (_("add tempo"), &before, &after));
 		commit_reversible_command ();
 
 		TempoMap::update (map);
@@ -649,7 +649,7 @@ Editor::mouse_add_new_meter_event (timepos_t pos)
 
 	map->set_meter (Meter (bpb, note_type), pos);
 
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &map->get_state()));
+	_session->add_command (new Temporal::TempoCommand (_("add time signature"), &before, &map->get_state()));
 	commit_reversible_command ();
 
 	TempoMap::update (map);
@@ -709,7 +709,7 @@ Editor::edit_meter_section (Temporal::MeterPoint& section)
 	tmap->set_meter (meter, when);
 
 	XMLNode &after = tmap->get_state();
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+	_session->add_command (new Temporal::TempoCommand (_("edit time signature"), &before, &after));
 	commit_reversible_command ();
 
 	TempoMap::update (tmap);
@@ -746,7 +746,7 @@ Editor::edit_tempo_section (TempoPoint& section)
 	tmap->set_tempo (tempo, when);
 
 	XMLNode &after = tmap->get_state();
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+	_session->add_command (new Temporal::TempoCommand (_("edit tempo"), &before, &after));
 	commit_reversible_command ();
 
 	TempoMap::update (tmap);
@@ -772,7 +772,7 @@ Editor::real_remove_tempo_marker (TempoPoint const * section)
 	XMLNode &before = tmap->get_state();
 	tmap->remove_tempo (*section);
 	XMLNode &after = tmap->get_state();
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+	_session->add_command (new Temporal::TempoCommand (_("remove tempo change"), &before, &after));
 	commit_reversible_command ();
 
 	TempoMap::update (tmap);
@@ -809,7 +809,7 @@ Editor::real_remove_meter_marker (Temporal::MeterPoint const * section)
 	XMLNode &before = tmap->get_state();
 	tmap->remove_meter (*section);
 	XMLNode &after = tmap->get_state();
-	_session->add_command (new MementoCommand<Temporal::TempoMap> (new Temporal::TempoMap::MementoBinder(), &before, &after));
+	_session->add_command (new Temporal::TempoCommand (_("remove time signature change"), &before, &after));
 	commit_reversible_command ();
 
 	TempoMap::update (tmap);