mpdwidget = widget({ type = 'textbox' })
vicious.register(mpdwidget, vicious.widgets.mpd,
    function (widget, args)
       local status = ""
       if     args["{state}"] == "Stop"  then status = "Stopped"
       elseif args["{state}"] == "Play"  then status = "Playing"
       elseif args["{state}"] == "Pause" then status = "Paused"
       end
       return '<span color="white">MPD:</span> '.. status
    end)

mpdwidget:add_signal('mouse::enter', function ()
                                        local statf = io.popen('mpc -f "\n[[Artist: %artist% \nAlbum:  %album% \nTrack: %track%]\nTitle:  %title%]|[%file%]" ')
                                        local stat = statf:read("*all")
                                        statf :close()
                                        naughty.notify({ title      = "Now Playing"
                                                         , text       = stat
                                                         , timeout    = 5
                                                         , position   = "top_right"
                                                      })
                                     end)

mpdwidget:buttons({
                     button({ }, 1, function () awful.util.spawn("mpc toggle") end),
                     button({ }, 2, function () awful.util.spawn("mpc stop") end),
                     button({ }, 3, function () awful.util.spawn(terminal .. " -e ncmpcpp") end),
                     button({ }, 4, function () awful.util.spawn("mpc prev") end),
                     button({ }, 5, function () awful.util.spawn("mpc next") end)
                    
    })

 

Espero que les sirva :)

Saludos!

Happy Hacking!