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<?php
function my_facetwp_is_main_query( $is_main_query, $query ) {
    if ( isset( $query->query_vars['facetwp'] ) ) {
        $is_main_query = true;
    }
    return $is_main_query;
}
add_filter( 'facetwp_is_main_query', 'my_facetwp_is_main_query', 10, 2 );
?>

<?php
$args = array(
	'numberposts'	=> -1,
	'post_type'		=> 'Concerts',
	'facetwp' => true,
);
$the_query = new WP_Query( $args );

?>
<?php echo facetwp_display( 'facet', 'state' ); ?>
<section class="facetwp-template">
<?php if( $the_query->have_posts() ): ?>
	<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
		<li>
			<a href="<?php the_permalink(); ?>">
				<img src="<?php the_field('event_thumbnail'); ?>" />
				<?php the_title(); ?>
			</a>
		</li>
	<?php endwhile; ?>
<?php endif; ?>
</section>
<?php wp_reset_query();?>