DI/AM/SY/OD is a set of pieces composed for bass clarinet and contrabassoon. In 2013 Ryterski composed first two works - DI and OD (originally titled Dialogi and Odkształcenia, eng. Dialogues and Distortions). In 2017 he composed another 2 pieces, which had its premiere (as well as the very first 2 revised movements) in September of 2017, during fringe event of Warsaw Autumn festival. In the meantime, a visual artist Monika Kuczyniecka decided to create a video for one of the movements - she chose OD. Her work is an abstract interpretation of Ryterki's music. All the pieces are dedicated and performed by Mateusz Rajkowski (bass clarinet) and Bernard Łasecki (contrabassoon).