For the scene when Vanka and Ella get smoochie there's only one choice of music: Nelli's take on the song 'Dancing'. 'Dancing' was written by the late, great Race Newton who played piano for Nelli for almost three years. Race had earned his chops playing in New York after the war and there wasn't ANYTHING he didn't know about jazz. He was a very special pianist and one of the few musicians I've ever met who knew that silence in music was as importaant as the notes.
Check out 'Dancing' on http://www.youtube.com/watch?v=7bO5H8j5VWs&feature=mh_lolz&list=LLAEaad32rqyB_FAkCeiLjdw