The song lasts less than 3 min, it was played mostly on Zet radio around 3 am in late spring
It was sung by a woman, similar in tone and calmness to Sarah Braithman's Captain Nemo
The announcer announced it as a song about rain
English spelled as I heard it at the time :)
performer
Brej bek
text
Ło du ju sej,,,, lak pospolit krej