In this rendition of the Весеннее танго, I hear "с юга" (for example at 1:04) pronounced as ['st͡sjʉgə]. Am I hearing it right, and, if so, what's the [t͡s] doing there? Is it part of some more general thing? I hear it every time German sings the words so it doesn't seem to be accidental, and, as far as I know, she was a native Russian speaker.
I'm asking this because, if it's a real thing, it's very strange to me as a Polish speaker. What we'd do with the onset of the first syllable is voice the /s/, but then the Polish version of "c" is "z", and it's voiced by default. I don't think Polish speakers insert extra affricates anywhere. (I could be wrong of course, but I'm sure enough to be almost shocked by the Russian thing --- again, if it's real.)