Kalitka, is a romanse, a type of song which holds a very high and cherished position in Russian music, not unlike Portuguese fado.
These are songs to be listened to. They ought to grab you by the heart and wrench it out.
Oleg Pogudin performs kalitka here:
http://pesni.voskres.ru/songs/pogud32.htm to get the audio file, click on the loudspeaker icon.