What’s the song playing when eve and villanelle dance in episode 8?

What music was playing while Oksana was milling around the home at the start just before  the young boy asked "who are you
 

What’s the song she’s listening to in ep 4 (the villanelle scene) when she’s baking the cake ?

What is the song at the end of the episode just before the end credits when Eve listens to the heart?

Episode 3

Conchita Velasco