Information added by Wikimedia users.

Inmate Hans Bonarewitz pulled on cart with crate inside which he attempted to escape. The camp orchestra under participation of Wilhelm Heckmann had to continuously play the song "J'attendrai ton retour" (I shall wait for your return). Another song, the traditional German children's song "Alle Vögel sind schon da" (All the birds are back again) was played immediately before execution. Following the execution of Bonarewitz, the "Polka of the beer barrel" was played. This information was supplied by Aitor Fernández-Pacheco, Paris, maker of the documentary film "Mauthausen, una mirada Española" who interviewed the former Spanish prisoner Mario Constante for his documentary.