Showing specific post in order of array wp_query

For anyone struggling with this. ‘orderby’=>’post__in’ makes this work.

  <?php

  $successful_musics_array = array('1682', '1684', '556', '1793', '558', '1788', '320', '1190', '1865', '1125', '1863', '1540');

  $query = new WP_Query( array(
  'post_type' => 'songs',
  'posts_per_page' => '15',
  'post__in'      => $successful_musics_array,
  'orderby'=>'post__in'
  ) );

    if ( $query->have_posts() ) : ?>
        <?php while ( $query->have_posts() ) : $query->the_post(); ?>


  <?php get_template_part( 'content', 'music-success' ); ?>

    <?php endwhile; wp_reset_postdata(); ?>
    <!-- show pagination here -->
<?php else : ?>
    <!-- show 404 error here -->
<?php endif; ?>