It is possible that you have broken down of current in the home but that you want to listen to music on your laptop Mac! To avoid wasting the battery, using InsomniaX.
InsomniaX is an application which allows you to put your laptop computer Mac in mode "stay up " or " extended wakefulness " while continuing listening to music.During reading, the high talkers of the portable are lit and work. Application does not limit itself only to music reading,you can also use function when you want to download of big file or simply to be able to have your applications opened during the opening. It is to note that these functions are still by default away on Mac.