Katerina began to sing Irish traditional music in the band Celtic Rej, in 1997. In 1998 she co-founded the band Dún an Doras, where she performed until 2007. Since 2001 she has collaborated with Lubos Malina in the band Garcia. She has also collaborated numerous musicians across various genres (Druhá tráva, Pavel Bobek, Steve Walsh, Alan Doherty, James Ryan, and the Dublin-based Traditional Arts Collective, among others). She became interested in Sephardic songs in the course of her masters, and later doctoral research, on the Judeo-Spanish language at Charles University in Prague. In 2006 she founded, together with her sister Barbara and fellow-singer Predrag, the band Kal y Kanto, focusing exclusively on Sephardic and Balkan traditional music. As a Hispanist, she continues to explore this area and currently lectures in Trinity College, Dublin.