„Griener moved from Nürnberg to Berlin some years ago and is since then one of the most demanded drummers for all cases. Played with traditional heroes like Herb Ellis,  radical players like Barry Guy,  stars of the Berlin scene like Axel Dörner or sound explorers like Zeena Parkins. He proofed to be the perfect player for all opportunities,  as he understands to play the most special idea in his very own way finding the right balance between his own play and the given context. His self-taught style merging flow and fragility is unique as well as his coolness.”