It is a staple of Kraftwerk albums that all the songs follow a central theme and contribute what ideas they can to it. A year before this album, that theme was roads and cars, and seeing how Autobahn was an excellent record, it would make sense to follow in its footsteps. Here, the theme is radiation, radio waves, and all sorts of invisible transmissions. Yet, the songs are decidedly shorter and more to the point than the songs on Autobahn. That's not to say, however, that this album is any less enjoyable. The title track has one of the catchiest Kraftwerk hooks around, and they even sometimes stray into ambient territory on songs like "Radioland" and "Ohm Sweet Ohm". Needless to say, it doesn't quite sound like anything else they've done, which is something you can say about many of their records. Oftentimes forgotten about in favor of other records in their discography, Radio-Activity isn't an album that was meant to be missed, especially if you enjoy some good electronic music.