I stumbled on this video after reading some posts in the "Performance Mutes" thread. Didn't want to go off topic there so thought I'd start a new thread.

My translation skills are not great, but think this is a brass band from Norway or Netherlands. Please correct me if I'm wrong. All in 'white tie' formal dress too. It's obviously a contest piece and this band won in 2017. Some great euphonium, tenor horn and cornet solos. Very tight group with excellent intonation. Around 2:34 the overtones of the chord line up perfectly... almost sounds like a pipe organ.

Eikanger-Bjørsvik Musikklag - Fraternity [Thierre Deleruyelle] - NM 2017