This is “Dies Irae” from the Requiem for mixed choir by Czech composer Zdeněk Lukáš. It’s one of those pieces that tests everything a choir has: rhythm, precision, focus, and nerves. The writing is sharp, syncopated, and relentless, and it only works if every single entrance is locked in. The NUSChoir from Singapore, led by Nelson Kwei, make it feel effortless. From the very first attack, you can hear how tight this ensemble is. It’s the kind of opening that grabs a room in two seconds flat. 🔥