I really did not expect acoustics to matter, yet perforation patterns, backing materials

https://telegra.ph/Why-the-Most-Difficult-Designers-Define-Copper-Custom-made-Parts-That-Prove-Themselves-Over-100-Years-05-17

I really did not anticipate acoustics to matter, yet perforation patterns, backing products, and panel midsts in steel ceilings tame echo while keeping crisp, contemporary lines.