SAEWEB2.2/ci/application/controllers/Song.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Song extends CI_Controller {

	public function __construct(){
		parent::__construct();
		$this->load->model('model_music');
	}

	public function view($album_id){
	    $songs = $this->model_music->getSongOfAlbum($album_id);
	    $this->load->view('layout/header');
	    $this->load->view('song_album_list',['songs'=>$songs]);
	    $this->load->view('layout/footer');
	}
}