Hailing from Poland, Batushka are a black metal band who incorporate themes of religion, Eastern Orthodox liturgy and so far have only one album, Litourgiya. Best tracks for me are definitely Yekteniya III (Premudrost) & Yekteniya IV (Milost) which respectively correspond to Litany: 3: Wisdom and Litany: 4: Grace, but I would definitely recommend giving the whole album a listen.
(Intro to Yekteniya III)
Have any of you seen any bands recently? :)