Sending current MPD song to Psi

If you use ncmpcpp (GIT version) you can publish tune after adding one line to your ~/.ncmpcpp/config

execute_on_song_change = "ncmpcpp --now-playing > ~/.psi/tune"

This line executes ncmpcpp (recursion!) when song changed.
This way have a issue: ncmpcpp --now-playing not give newline. It not show a user tune according XEP-0118.

 If you want to match the standard, you should to install MPC and you fix the line:

execute_on_song_change = "mpc --format '%title%\n%artist%\n%album%\n%track%\n%time%' | head -n -2 > ~/.psi/tune"

 If the instructions do not help, you may check:

• Psi version
• ncmcpp version
• Support this feature on your jabber server.

*It works only if ncmpcpp run.

*ncmpcpp not have hook for pause or stop. 

Sending current MPD song to Psi