WordPressのテーマを作る羽目になったWebエンジニアへ

register_taxonomy('genre', 'music', [
  'label' => '音楽ジャンル',
  'hierarchical' => true,
  'show_in_rest' => true,
]);

<?php elseif(is_tax()): ?>
  <h1><?php wp_title(''); ?></h1>

var_dump(get_queried_object());
/*
object(WP_Term)[4505]
  public 'term_id' => int 8
  public 'name' => string 'EDM' (length=3)
  public 'slug' => string 'edm' (length=3)
  public 'term_group' => int 0
  public 'term_taxonomy_id' => int 8
  public 'taxonomy' => string 'genre' (length=5)
  public 'description' => string '' (length=0)
  public 'parent' => int 0
  public 'count' => int 0
  public 'filter' => string 'raw' (length=3)]
*/

<?php elseif(is_tax()): ?>
  <?php
    $query_object = get_queried_object();
    $taxonomy     = get_taxonomy($query_object->taxonomy);
  ?>
  <h1><?php echo $taxonomy->label; ?></h1>

<span class="subheading"><?php the_archive_title(); ?></span>

<span class="subheading"><?php single_term_title(); ?></span>

<div class="site-heading">
  <?php
    $query_object = get_queried_object();
    $taxonomy     = get_taxonomy($query_object->taxonomy);
  ?>
  <?php if(is_category()): ?>
    <?php $sub_title = single_cat_title(``, false); ?>
    <h1><?php echo $taxonomy->label; ?></h1>
  <?php elseif(is_tag()): ?>
    <?php $sub_title = single_tag_title(``, false); ?>
    <h1><?php echo $taxonomy->label; ?></h1>
  <?php elseif(is_author()): ?>
    <?php $sub_title = get_the_author(); ?>
    <h1>Author</h1>
  <?php elseif(is_tax()): ?>
    <?php $sub_title = single_term_title(``, false); ?>
    <h1><?php echo $taxonomy->label; ?></h1>
  <?php elseif(is_post_type_archive()): ?>
    <?php $custumFlg = 1; ?>
    <h1><?php wp_title(''); ?></h1>
  <?php elseif(is_search()): ?>
    <?php $sub_title = esc_html(get_search_query(false)); ?>
    <h1>検索結果</h1>
  <?php elseif(is_404()): ?>
    <?php $sub_title = 'ページが見つかりません'; ?>
    <h1>404</h1>
  <?php else: ?>
  <?php endif; ?>
  <?php if($custumFlg != 1): ?>
    <span class="subheading"><?php echo $sub_title; ?></span>
  <?php endif; ?>
</div>

<h1><?php the_title(); ?></h1>
<p class="post-meta"><?php the_taxonomies(); ?></p>

<h1><?php the_title(); ?></h1>
 <?php the_taxonomies(array('before' => '<p class="post-meta">', 'after' => '</p>')); ?>

<h1><?php the_title(); ?></h1>
<?php $terms = get_the_terms(get_the_ID(),'genre'); ?>
<?php if ($terms): ?>
  <ul class="list-inline text-center">
    <?php foreach ($terms as $term): ?>
      <li class="list-inline-item"><?php echo esc_html($term->name); ?></li>
    <?php endforeach; ?>
  </ul>
<?php endif; ?>

<li class="list-inline-item"><a href="<?php echo get_term_link($term); ?>"><?php echo esc_html($term->name); ?></a></li>

<?php if($custumFlg === 1): ?>
  <?php $terms = get_terms('genre'); ?>
  <ul class="list-inline text-center">
    <?php foreach ($terms as $term): ?>
      <li class="list-inline-item"><a href="<?php echo get_term_link($term); ?>"><?php echo esc_html($term->name); ?></a></li>
    <?php endforeach; ?>
  </ul>
<?php else: ?>
  <span class="subheading"><?php echo $sub_title; ?></span>
<?php endif; ?>

$args = array(
  'post_type' => 'music',
  'posts_per_page' => 5,
);

$wp_query = new WP_Query($args);

if ( $wp_query->have_posts() ) {
    while ( $wp_query->have_posts() ) {
        $wp_query->the_post();
        the_post();
    }
} else {
  print "no no!";
}

wp_reset_postdata();