Add Zend_Media_Id3v2 class proposal

git-svn-id: http://php-reader.googlecode.com/svn/branches/zend@153 51a70ab9-7547-0410-9469-37e369ee0574

src/Zend/Media/Id3/Frame/Tkey.php

@@ -0,0 +1,43 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Media
+ * @subpackage ID3
+ * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com) 
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**#@+ @ignore */
+require_once 'Zend/Media/Id3/TextFrame.php';
+/**#@-*/
+
+/**
+ * The <i>Initial key</i> frame contains the musical key in which the sound
+ * starts. It is represented as a string with a maximum length of three
+ * characters. The ground keys are represented with 'A', 'B', 'C', 'D', 'E', 'F'
+ * and 'G' and halfkeys represented with 'b' and '#'. Minor is represented as
+ * 'm', e.g. 'Dbm'. Off key is represented with an 'o' only.
+ *
+ * @category   Zend
+ * @package    Zend_Media
+ * @subpackage ID3
+ * @author     Sven Vollbehr <sven@vollbehr.eu>
+ * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com) 
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+final class Zend_Media_Id3_Frame_Tkey extends Zend_Media_Id3_TextFrame
+{}