C#

private void PlayMP3()
        {
            try
            {
                string strLP = this.textBox1.Text.Trim();
                string strPath = Application.StartupPath;
                WMPLib.WindowsMediaPlayer player = new WMPLib.WindowsMediaPlayer();
                WMPLib.IWMPPlaylist myplaylist = player.playlistCollection.newPlaylist("myplaylist");
                //Clear playlist before create new one.
                myplaylist.clear();
               //Create new playlist
                foreach (char c in strLP)
                {
                    //read
                    string strFileName = "raw\\" + string.Concat(c, ".mp3");
                    string strFileLocation = Path.Combine(strPath, strFileName);
                    WMPLib.IWMPMedia media = player.newMedia(strFileLocation);
                    myplaylist.appendItem(media);
                }
                player.playlistCollection.importPlaylist(myplaylist);
                player.currentPlaylist = myplaylist;
                //Play
                player.controls.play();
               
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }