Customize Genesis Grid Loop for Excerpt, with dual excerpt lengths for teaser and features, custom Read More with accessibility added

Custom-Grid-Loop-Excerpt

/**
 * Change the number of words in excerpt if in the grid loop and customize READ MORE, add accessibility
 */
function kat_grid_content() {

	// First, we make sure we're in the grid loop.
	if( ! apply_filters( 'is_genesis_grid_loop', false ) )
		return;

	// Change length if teaser
	if( in_array( 'teaser', get_post_class() ) )
		$length = 25;
	else
		$length = 55;

	echo '<p>' . wp_trim_words( get_the_excerpt(), $length ) . '</p>';

	// Display more link
	// echo '<a rel="nofollow" class="more-link" href="' . get_permalink() . '">Continue Reading</a>';
	echo '<p class="more-link"><a href="'. get_permalink() .'">' . __( 'Read more', 'genesis' ) . '<span class="screen-reader-text"> ' . __( 'about' ) . " " . get_the_title() . "</span></a></p>";
	// Remove default content so we don't get both
	remove_action( 'genesis_entry_content', 'genesis_do_post_content' );
}
add_action( 'genesis_entry_content', 'kat_grid_content', 9 );