This present many interesting possibilities. I might envision dropped diffusers that might not only be acoustically effective and also visually stunning if done right. You also reserve the option of a bass trap hidden above the diffusers.
New construction ceiling advise
I have a new home with a designated listening room in the basement. I have 2x4 studs on 8” center with double 1/2” drywall. The floor will be covered in carpet. The room is 30’ 4” x 16’. I originally planned to use high grade USG ceiling tile but that would only provide a 9’ or less ceiling. My question is this: What if I use nothing overhead? I would be at 11’ to the subfloor above. Sound isolation in this room is not an issue. TIA