Rafał Skiba, also known as OER, is a versatile music producer with a degree in Sound Engineering from the University of Wolverhampton (U.K.).

As the co-founder and music producer of the Bydgoszcz-based bands B.O.K and HRYPA, Rafał’s passion for music shines through in every project. He’s a Golden Record winner for his work on Bisz's album "Wilk Chodnikowy" and runs the 21 Music Studio in Bydgoszcz, offering recording, mixing, and mastering services. A three-time winner of the "Perfect Beat Challenge" and numerous other accolades, Rafał's beats and productions are well-recognised in the industry.