Michal Jacaszek's Pentral is an attempt to describe a gothic church interior by means of sounds. A temple owes its special atmosphere not only to visual elements but also to characteristic acoustics – reverb, enhancing and prolonging a slightest whisper into infinity. Jacaszek spent several days in three Gdansk historic churches (Oliwa Cathedral, St. Nicolas' church, St. Mary's Basilica) recording chanting, organs, and also a broad spectrum of accidental noises. Source sounds were were used only as a stimulus which releases the sound of the whole inside, and as such, they were consequently retouched in the post production process. Studio work and also the atmosphere of melody and arrangements were subordinate to the idea of portraying the church as a place filled with distant mysteries, a huge music instrument.