There are many ways to play music through the console, as much as to save resources, as out of sheer freakiness. RAE 😛
What I do is play the music with mplayer through the console, and the consumption does not rise from the 2Mb, as simple as that.
$ mplayer /ruta/fichero.ogg
Of course, it would be very tedious to select one by one the songs that we want to listen to. What I do is use programs like Rhythmbox o Banshee to create a playlist. I export it as m3u. Then I use the command:
mplayer -msgcolor -playlist Music/Listas/Banshee_Completo.m3u
the command -msgcolor is to color the information that comes out in the console as seen in the image. If you want to try other options we can resort to «Kills donkeys»:
$ man mplayer