Add MPD service file

systemd/.config/systemd/user/mpd.service

@@ -0,0 +1,24 @@
+[Unit]
+Description=Music Player Daemon
+After=network.target sound.target
+
+[Service]
+ExecStart=/usr/bin/mpd --no-daemon
+ExecStartPre=/usr/bin/mount /mnt/music
+ExecStopPost=/usr/bin/umount /mnt/music
+
+# allow MPD to use real-time priority 50
+LimitRTPRIO=50
+LimitRTTIME=-1
+
+# move MPD to a top-level cgroup, as real-time budget assignment fails
+# in cgroup /system/mpd.service, because /system has a zero real-time
+# budget; see
+# http://www.freedesktop.org/wiki/Software/systemd/MyServiceCantGetRealtime/
+ControlGroup=cpu:/mpd
+
+# assign a real-time budget
+ControlGroupAttribute=cpu.rt_runtime_us 500000
+
+[Install]
+WantedBy=default.target