I believe you can just use the WP_Query method to query the database with a tax_query
like so:
$my_query_args = array(
'post_type' => 'shows',
'tax_query' => array(
'relation' => 'AND',
array(
'taxonomy' => 'location',
'field' => 'slug',
'terms' => 'california'
),
array(
'taxonomy' => 'genre',
'field' => 'slug',
'terms' => 'comedy'
)
)
);
$my_query = new WP_Query( $my_query_args );
if( $my_query->have_posts() ) : while( $my_query->have_posts() ) : $my_query->the_post();
the_title();
echo '<br'>;
the_content();
endwhile; endif; wp_reset_postdata();