course and positions meta
$notes = array( array( 'key' => 'associated_course_id', 'value' => '$course_id', ), array( 'key' => 'geniusposition', 'value' => '$postitions[]', 'compare' => 'IN', ), );
$notes = array( array( 'key' => 'associated_course_id', 'value' => '$course_id', ), array( 'key' => 'geniusposition', 'value' => '$postitions[]', 'compare' => 'IN', ), );