Initial key 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 * @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 {}