Someone

   [CCode (cname = "mpd_Song",
    free_function = "mpd_freeSong",
    copy_function = "mpd_songDup",
    cheader_filename = "libmpd/libmpdclient.h,libmpd/libmpd.h")]
    [Compact]
    public class Song {
        [CCode (cname = "mpd_newSong")]
        public Song ();
        public string file;
        public string artist;
        public string title;
        public string album;
        public string track;
        public string name;
        public string date;
        public string genre;
        public string performer;
        public string disc;
        public string comment;
        public string albumartist;
        public int    time;
        public int    pos;
        public int    id;
        [CCode (cname="mpd_songDup")]
        public Song copy ();
        [CCode (instance_pos = -1)]
        public void markup (char[] buffer, int length, string markup);
    }