Hannah Crepaz artistic and managing director hannah[dot]crepaz[at]osterfestival[dot]at +43 5223 53808 41 Maria Crepaz concert management, organization maria[dot]crepaz[at]osterfestival[dot]at +43 5223 53808 43 Birgit Treffner (maternity leave) marketing, press, sponsorship birgit[dot]treffner[at]osterfestival[dot]at Sandra Wallner concert management, organization sandra[dot]wallner[at]osterfestival[dot]at Gerhard Crepaz * 08.08.1945 – † 24.11.2021