commit a23d5f19ab5efbc5f57162153c5ec448aa493723
Author: pinto <pintolo1234@gmail.com>
Date:   Tue May 30 22:23:19 2017 +0000

    This fixes auto playing not working. Seems @P3 is the new mpg321 signal for song being over, so both P0 and P3 should be checked. SRC: https://www.apt-browse.org/browse/debian/wheezy/main/i386/mpg321/0.3.2-1.1/file/usr/share/doc/mpg321/README.remote

diff --git a/lisp/emms-player-mpg321-remote.el b/lisp/emms-player-mpg321-remote.el
index 85f506c..8afe11a 100644
--- a/lisp/emms-player-mpg321-remote.el
+++ b/lisp/emms-player-mpg321-remote.el
@@ -153,7 +153,7 @@ For example: (list \"-o\" \"alsa\")"
       (cond
        ;; stop notice
        ((and (string= cmd "@P")
-             (string= (cadr data) "0"))
+             (or (string= (cadr data) "0") (string= (cadr data "3") ))
         (emms-player-mpg321-remote-notify-emms))
        ;; frame notice
        ((string= cmd "@F")