Shazam is just a great service. The days of sitting there for hours trying to remember a song your heard earlier, or pestering a friend to see if they know the title / artist, or even Googling fragments of the lyrics - yes, we've all been there - are long gone. The music recognition app works its magic in seconds, retaining information on tracks that it tags, and more recently, has broadened its horizons to incorporate TV shows and advertisements. Today, after having had the iOS / Android apps out for a good couple of years now, a Mac version has just been released, and the inconspicuous app is not only useful for those occasions when you don't want to have to reach for your mobile device, but its always-on nature means you certainly won't miss a thing.