Modifying template PHP?

Hello friends beasts in WordPress.

I need a big help.

My theme has different page templates and would like to adapt each other. For example, this is the template I’m using on every page.

TEMPLATE 1

<?php
/**
 * Template Name: Page with sidebar
*/

get_header('page'); ?>
<section class="scrollable wrapper-lg">
  <div class="row">
    <div class="col-sm-9">

      <?php while ( have_posts() ) : the_post(); ?>
          <div class="panel wrapper-lg">
            <?php get_template_part( 'template-parts/content', 'page' ); ?>
          </div>
          <?php
              // If comments are open or we have at least one comment, load up the comment template.
              if ( comments_open() || get_comments_number() ) :
                  comments_template();
              endif;
          ?>

      <?php endwhile; // End of the loop. ?>

    </div>
    <div class="col-sm-3">
      <?php get_sidebar('page');  ?>
    </div>
  </div>
</section>
<?php get_footer('page');  ?>

But this template is the page you want to replace some items. For example, I want mater of its contents, however, want to insert some items that exist on the other template.

TEMPLATE 2

<?php
/**
 * Template Name: Genres
*/

get_header(); ?>
<section class="w-f-md">
    <section class="hbox stretch">
        <aside class="aside bg-light dk">
            <section class="vbox">
                <section class="scrollable hover">
                    <?php the_widget( 'music_term_widget', 'taxonomy=download_category&display=list&widget=false&hide_empty=on&show_count=on' );?>
                </section>
            </section>
        </aside>
        <section>
            <section class="vbox">
                <section class="scrollable padder-lg">
                	<h1 class="font-thin h2 m-t m-b"><?php esc_html_e('Todas', 'musik'); ?></h1>
                    <?php
                        $count = get_option( 'posts_per_page' );
                        the_widget( 'music_post_widget', 'count='.$count.'&orderby=date&pagination=on' );
                    ?>
                </section>
            </section>
        </section>
    </section>
</section>
<?php get_template_part( 'template-parts/player' ); ?>
<?php get_footer( );  ?>

[Moderator Note: Please post code & markup between backticks or use the code button. Your posted code may now have been damaged by the forum’s parser.]

I will explain using pictures.

This is the original model template 2:

https://cetps-pa.com.br/compositor/sample1.jpg

I want you to be well, based on the model template 1:

https://cetps-pa.com.br/compositor/sample2.jpg

Basically just insert the white background and add logal the widget. I did in Photoshop, they are a good designer and not a good programmer

I hope you help me!