1 February 2021, online from the J. S. Bach’s Music School’s concert hall, Dobřany, available at https://www.youtube.com/watch?v=NAwkSouYBmI New Music² Jiří Bezděk: Exposé for two accordions (world premiere) Ladislav Horák, Josef Hřebík – accordion
7 January 2021, online stream from the Concert Hall of the Prague Conservatory, available at https://www.youtube.com/watch?v=sU2Kdv2nmgg&feature=emb_logo New Music² Pavel Trojan: Duo Concertante (world premiere) Ladislav Horák, Josef Hřebík – accordion
7 August 2019, Large Hydraulic Hall – Masaryk Water Research Institute, Prague Music for Sirens… micro-concerts with emergency siren test Sirene & Water (world premiere) Concept / music: Petr Hora Josef Hřebík – accordion, Pavla Radostová, Bronislava Smržová – voice
