Get posts from custom tax grouped by terms (WP API) #WP

Asset.php

$myterms = get_terms('retouch_types', 'orderby=none&hide_empty');
foreach ($myterms as $term) {
	setup_postdata($post);

	$term->name;
	
	//select posts in this category, and of a specified content type
	$posts = get_posts( array(
		'post_type' => 'retouch',
		'tax_query' => array(
			array(
				'taxonomy' => 'retouch_types',
				'field' => 'slug',
				'terms' => $term->slug
			)
		)
	));
	
	// begin cycle through posts of this category
	foreach($posts as $post) {

		the_title();
		the_excerpt();

	}
}