Ideal design for a new music room

I think any way you build it, is probably going to have some issue that you did not consider. 
Beyond making sure it was properly wired, and the walls suitably deadened; I would build it so that it looks good and can be furnished tastefully.
As you are building from scratch, hiring a professional sound tech would make the most sense. IMHO
Bob

Hello Encore,

Our company has spent the past twenty years developing a new technology involving vibration management that has now expanded to sound room design.

The initial prototype titled Energy Room was built in 2012. A few Audiogon members were able to audition this initial application of the technology applied to listening environments. The members are very well written on this forum and can be referred to you for reference.

We are about to roll out the fully developed patentable room located in Madison, WI and are welcoming auditions prior to Industry reviews being published.

The framework is mechanically grounded and functions much the same as our equipment racking and cello endpins. All power panels, cable feeds and outlets are also mechanically grounded to the resonance conductive skeleton. The walls are hard surfaced (⅜” drywall) to maximize leading edge dynamics and harmonic structures associated with live musical presentations.

Surface reflections, wall or corner loading effects, slap echoes are minimalist and managed via the product’s technical application through function. There is no aftermarket acoustic wall or floor devices required or are used in the design.

This innovation works as a critical listening or theater environment; opens new doors to various recording studio applications or serves as a musician’s creative writing and/or rehearsal space.

The end result delivers a sense of being there - the “live” experience.

Please feel free to contact us for more information or discuss your design.

Robert

Star Sound

www.starsoundtechnologies.com

I would recommend you to check Pinterest for some music room design. You can see great images that you can copy for your studio. 

fwiw. Don’t try to reinvent the wheel. Rectangular rooms work and I can’t imagine why you say the Golden Ratios are hard to apply- but- you are wrong. Someone suggested 3/8 inch walls- I can’t think of a kind comment about them. Along with the Cardas site look into the construction features of the Rockport Technologies listening room. The best advice you will get is to decide the size room you want and build it solidly and symmetrically. Allow 5 -6 ft behind your speakers and at least 4.5 feet from speakers to side walls. 8 ft behind your head. Plan a vibration isolated area with a door to the side of your speakers for electronics and vibration isolation for your amplifier. Organ music right?  Assuming you’d like your speakers 6-7 ft apart you need 16-17 ft width, about 19 length. 9 ft is contemporary minimum height for a classy space. Get yourself graph paper and draw to scale-precisely. Use 2-3x5/8 drywall on walls. I’d use a base of 5/8 mdf as the first layer behind the speakers if your speakers can drive organ music down to about 30cps. I did these with my 17x27 rm and got positive comment.  Floor shd not flex. Symmetry helps to kiss. Helps resale value and decorating as well :) Enjoy and best wishes.