I didn't expect acoustics to matter, yet opening patterns, backing materials

https://www.scribd.com/document/1058700139/Dormer-Design-for-100-Years-Copper-That-Doesn-t-Lie-to-Engineers-or-Owners-187935

I really did not expect acoustics to matter, yet opening patterns, backing materials, and panel midsts in metal ceilings tame echo while maintaining crisp, modern lines.