– 15th April 2023 Petra Cini – A Meta-Musical Evening, concert/seminar with mathematician Raf Bocklandt at HaagsPianoHuis, The Hague (NL): tickets

– 14th April 2023 presentation of the SO(3) ETUDES (2021-2023) with mathematician Raf Bocklandt at the NH Noordwijkerhout conference hotel de Leeuwenhorst, Noordwijkerhout (NL), for the Nationale Wiskunde Dagen

– 25th March 2023 Petra Cini – A Meta-Musical Evening, concert/seminar with mathematician Raf Bocklandt at Splendor, Amsterdam (NL): tickets