The name of the band are the first letters of its members’ names: Banach and Kafi. Piotr Banach is a well known Polish composer and music producer. He is the founder and ex-leader of one of the most important Polish bands – Hey. His other projects Indios Bravos and Ludzie Mili also succeed in Poland and influenced the scene. Banach is also the author of the very feminine lyrics for BAiKA, sung by Kafi in a strong but also delicate way. The lyrics tell simple but deep stories about human feelings and experiences. In December 2017 BAiKA took part as the special guest on the goodbye tour of Hey.