Halo Theme Song LIVE in a 16000t Oil Silo(Crazy Reverb!) A Cappella | Campaign Evolved OST Tribute

Oil Silo 468 is known for its divine & eternal echo. It's a former 16000t oil tank turned into light artwork in Helsinki, Finland. It's a perfect place for us to sing the Halo Theme Song, originally composed by Martin O'Donnell, and celebrate together the release of Halo: Campaign Evolved. Enjoy! If you like this video check out our other songs as well and subscribe to our channel🙏    • The BEST of Munx Gregoriana | Playlist   We are Munx Gregoriana, a vocal ensemble from Helsinki, Finland. Our overarching objective is to present medieval a cappella music in a way that reaches a wider audience, all the while celebrating our passion for video games and movies, and their beautiful soundtracks. We want to also bring the art of gregorian monks chants to the future generations. Stay tuned! Halo Theme Song from Campaign Evolved OST Composed by Martin O'Donnell Arranged by William Häggblom Munx Gregoriana Niilo Erkkilä William Häggblom Justus Pitkänen Video Crew Directed and edited by Tuomas Tenkanen Recording & mixing by Tuomas Tenkanen Mastering by Markus Kärki #halocampaignevolved #halo #halotheme