https://helheim-openair.de/band-genre/alternative-metal/ 2026-08-18T08:35:09+00:00 https://helheim-openair.de/band-genre/black-symphonic-folk-metal/ 2026-08-18T08:24:49+00:00 https://helheim-openair.de/band-genre/dark-rock/ 2026-08-18T08:31:29+00:00 https://helheim-openair.de/band-genre/groove-metal/ 2026-08-18T08:37:09+00:00 https://helheim-openair.de/band-genre/heavy-metal/ 2026-08-18T08:13:15+00:00 https://helheim-openair.de/band-genre/melodic-death-metal/ 2026-08-18T09:23:22+00:00 https://helheim-openair.de/band-genre/metal/ 2026-08-18T08:54:14+00:00 https://helheim-openair.de/band-genre/mittelalter-rock/ 2026-08-18T08:36:07+00:00 https://helheim-openair.de/band-genre/modern-electronic-rock/ 2026-08-18T08:29:13+00:00 https://helheim-openair.de/band-genre/neue-deutsche-haerte/ 2026-08-18T08:28:03+00:00 https://helheim-openair.de/band-genre/opera-metal/ 2026-08-18T08:07:44+00:00 https://helheim-openair.de/band-genre/rock/ 2026-08-18T08:33:48+00:00 https://helheim-openair.de/band-genre/symphonic-folk-metal/ 2026-08-18T08:08:14+00:00 https://helheim-openair.de/band-genre/symphonic-metal/ 2026-08-18T11:58:17+00:00 https://helheim-openair.de/band-genre/thrash-metal/ 2026-08-18T08:38:56+00:00