The first Arktis album from 1974 and the second, 'Arktis tapes', already differ markedly. The third, 'On the rocks', is totally different again: By now 'klausless', that is without Mr. Blachut and Mr. Göllner, but featuring an organ instead, they have become more straight-forward and slamming and are less playful than before. While 'Please call me' and the bonus track 'Y.T.T.' can be called progressive only if judged leniently, this is made up for by the twenty-minute track 'Loneliness'. All in all one can recognize their development towards mainstream rock.