Hannah Crepaz artistic and managing director hannah[dot]crepaz[at]osterfestival[dot]at +43 5223 53808 Maria Crepaz concert management, organization maria[dot]crepaz[at]osterfestival[dot]at +43 5223 53808 Carla Velasco concert management, organization carla[dot]velasco[at]osterfestival[dot]at +43 699 16351610 Birgit Treffner (maternity protection) marketing, press, sponsorship birgit[dot]treffner[at]osterfestival[dot]at +43 699 16351608 Hannah Habringer Assistant hannah[dot]habringer[at]osterfestival[dot]at +43 5223 53808 Gerhard Crepaz Consultation