Guy from an Architectural standpoint your idea is sound. My only concern is sound treatment between the floor to the rooms below. Another concern would be access to bring in gear. Door openings and stairs in particular.
Materials such as stucco or adobe walls would be good for your climate. A tiled floor may introduce some issues. Bamboo ? or do the termites like that as well ?
You may consider bringing an electric panel with dedicated circuits right up to the room. Stick to incadescent lighting with separate fixtures not in the clg, no flourescent or Halogen. The clg. in lieu of a just a slanted one can be a bamboo curved affair like a big wave with the slant still mantained. Then you could use some accent lighting above and floor cans. Irregular surfaces are a good thing.
I am a retired Architect and Costr. Mgr if you need a brain to pick. As always have fun which i feel you will.
charles
Good morning Charles.
Thanks for your post; it’s appreciated more than you think, which simply means: It’s highly appreciated.
Please don’t be concerned about the music disturbing the neighbors, because up stairs there is no one, I am on the roof, down stairs, it’s my wife and I apartment, all around, there no one, and here in Vietnam, everybody makes noise, therefore, why not me?
My noise will be hi-fidelity noise…
The access to my listening room (and office) will be done via large stairs (4 feet wide) and the doors will be 36 inches wide.
It’s not the first house that I am building; this new project will be my house # 5.
As for the stucco suggestion, the idea is good and I am sure it’s very efficient at diffusing sound waves, but I hate the look of stucco, it reminds me of the Spanish style and I sure don’t like the Spanish style, but thank anyway for the suggestion.
For the adobe, according to the dictionary, it’s some old style bricks; that might be something I might consider.
It’s easy to find here in Vietnam and not too expensive.
I came up with this idea, not sure if it makes sense.
If they are installed at different depth and painted a nice color, it might even look good on top of being efficient at diffusing the sound with the holes in the bricks.

The floor will be made of 12” armored concrete with ceramic tiles on it; however, I will have a thick Asian carpet with a good under carpet and it will cover 75% of the floor area.
The bamboo is not the termites favorite dish, however they do eat it, but if it’s painted with a clear varnish, it will give them some stomach hake, but bamboo will make my listening room look like a resort on the sea side. Again, thanks for the idea.
You will start thinking that I am very difficult to satisfy.
It was my intention to have a dedicated electrical control panel with a voltage stabilizer (A must for every house here in Vietnam.) only for the listening room, with several circuit breakers.
I am the son of an electrical contractor. Back in Canada 15 years ago and for more than 20 years I have designed and built industrial electrical control panels and I am graduated from an electronic college, therefore, I sure don’t want to sound like a smart cookie, but I do have some basic knowledge, but again, thanks for the advice, it’s appreciated.
The lighting will be the new energy saving pig tail bulbs with indirect lighting, however they will be turned off when the audition will begin and the incandescent bulbs will be turn on only for ambiance lightning, they will look like this one.

Purchased from Tube Depot for round 10 USD.
I am still thinking how I will tackle the problem of the ceiling;
I know the contractor will tell me it’s difficult to do a slanted ceiling and might want to charge me an arm and a leg for it.
I might go with a standard straight ceiling with absorption panels ? ? ?
Any more suggestions with that ?
I have to do more thinking for this (IMPORTANT) project.
I am trying to look for answers for the following questions/problems.
However, I will keep searching for answers on the Internet, in the mean time, any ideas, suggestions are welcome.
<< Front wall: (The wall behind the speakers)
Diffusion right?
How about, shelves with all kind of stuff like CD, LPs, books,
Vase, and audio stuff of course…
<< Back wall: (The wall behind the listening chair.)
Diffusion or absorption? (Not sure)
<< Side walls: Parallel or not? Either ways, it’s easy to build.
<< Ceiling: slanted or straight?
(That’s my biggest problem or decision.)
On my next post I might include a hand sketch on how I see my listening room. A hand sketch made with a shaking hand and not a computer generated nice looking layout.
Waiting, waiting and more waiting, plus searching and more searching…
Guy 13.