This is a variation of custom event titles where the page title is defined by a variable.

custom-event-title-variable.php

if(isset($pagecustoms['zeitgeist_header_title'])) {
    $htitle = $pagecustoms['zeitgeist_header_title'];
  } elseif( tribe_is_month() && !is_tax() ) { // The Main Calendar Page
    $htitle = 'Events Calendar';
  } elseif( tribe_is_month() && is_tax() ) { // Calendar Category Pages
    $htitle = 'Events Calendar: ' . tribe_meta_event_category_name();
  } elseif( tribe_is_event() && !tribe_is_day() && !is_single() ) { // The Main Events List
    $htitle = 'Events List';
  } elseif( tribe_is_event() && !tribe_is_day() && !is_single() && is_tax() ) { // Category Events List
    $htitle = 'Events List: ' . tribe_meta_event_category_name();
  } elseif( tribe_is_event() && is_single() ) { // Single Events
    $htitle=get_the_title();
  } elseif( tribe_is_day() ) { // Single Event Days
    $htitle= 'Events on: ' . date('F j, Y', strtotime($wp_query->query_vars['eventDate']));
  } elseif( tribe_is_venue() ) { // Single Venues
    $htitle=get_the_title();
  } else {
    $htitle=get_the_title();
  }