add_filter( 'widget_display_callback', 'force_music_header_widget', 10, 3 );
function force_music_header_widget( $instance, $widget, $args ) {
// Convert the object into an array to completely remove the -> arrow symbol
$widget_array = (array) $widget;
$widget_id = $widget_array['id'];
// Check if the widget ID contains or matches 'music'
if ( strpos( $widget_id, 'music' ) !== false || $widget_id === 'music' ) {
if ( is_category( 'music' ) || ( is_single() && in_category( 'music' ) ) ) {
return $instance;
}
return false;
}
return $instance;
}
