Seppl Kretz started his career as keyboard player and composer for indie and psychedelic pop-bands. Eventually bringing him into music production and supervision for advertising. Where he, as Creative (Music) Director, won numerous international awards (Cannes Lion, Eurobest etc) for his work with brands like Heineken, Diesel, Schweppes and others. In 2022 Seppl co-founded Magma Music Agency together with Michael Bertoldini. Magma focuses on bespoke and sync music for global advertising.