The 1958 contest was only the third Eurovision Song Contest ever arranged. I find it therefore quite remarkable that the video recording of the contest from 55 years ago is such a good quality picturewise and specially soundwise.
With such a good and dynamic sound quality it is a joy to watch and listen to the contest, which gave us some of the first world wide Eurovision hits (Nel blu di pinto di blu from Italy and Dors mon amour from France).
The Austrian entry is not one of those. Liane Augustin, was a popular actress and singer from the last years of the 2nd world war until her untimely death in 1978 (at only 51 years of age). In Eurovision she sang beautifully the otherwise unremarkable ballad and received the unremarkable fifth position (among only 10 participants). Even with a good singer, the Austrian entry was overshadowed by other entries of this, rather good quality Eurovision Song Contest of 1958.
My points 2/5.