diff --git a/gtk2_ardour/editor.cc b/gtk2_ardour/editor.cc
index 53ad481eb3..36368f2a36 100644
--- a/gtk2_ardour/editor.cc
+++ b/gtk2_ardour/editor.cc
@@ -3191,14 +3191,14 @@ Editor::build_snap_type_menu ()
 void
 Editor::setup_tooltips ()
 {
-	ARDOUR_UI::instance()->set_tip (smart_mode_button, _("Smart Mode (add Range functions to Object mode)"));
-	ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Object Mode (select/move Objects)"));
-	ARDOUR_UI::instance()->set_tip (mouse_cut_button, _("Cut Mode (split Regions)"));
-	ARDOUR_UI::instance()->set_tip (mouse_select_button, _("Grab/Select Objects"));
-	ARDOUR_UI::instance()->set_tip (mouse_draw_button, _("Draw/Edit Gain/Notes/Automation"));
-	ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions and MIDI Notes"));
-	ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Listen to Specific Regions"));
-	ARDOUR_UI::instance()->set_tip (mouse_content_button, _("Edit Contents (notes and automation)"));
+	ARDOUR_UI::instance()->set_tip (smart_mode_button, _("Smart Mode (add Range functions to Grab mode)"));
+	ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Grab Mode (select/move objects)"));
+	ARDOUR_UI::instance()->set_tip (mouse_cut_button, _("Cut Mode (split regions)"));
+	ARDOUR_UI::instance()->set_tip (mouse_select_button, _("Range Mode (select time ranges)"));
+	ARDOUR_UI::instance()->set_tip (mouse_draw_button, _("Draw Mode (draw and edit gain/notes/automation"));
+	ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch Mode (time-stretch audio and midi regions, preserving pitch)"));
+	ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Audition Mode (listen to regions)"));
+	ARDOUR_UI::instance()->set_tip (mouse_content_button, _("Internal Edit Mode (edit notes and gain curves inside regions)"));
 	ARDOUR_UI::instance()->set_tip (*_group_tabs, _("Groups: click to (de)activate\nContext-click for other operations"));
 	ARDOUR_UI::instance()->set_tip (nudge_forward_button, _("Nudge Region/Selection Later"));
 	ARDOUR_UI::instance()->set_tip (nudge_backward_button, _("Nudge Region/Selection Earlier"));