An over dampened, deadend, etc room results in a test chamber is not generally an optimal listening environment. The best results are with a combination of treatments that allow life into the music so it sounds more natural to the space it was recorded in.
Thus, there might not be a perfect way to do this as music is recorded in quite a wide range of places, studios, live venues outdoors, concert halls, etc.
If you take the time to study the subject then use the minimal amount of bass traps, diffusers and absorbers to get to the place where it sounds the best to you for your tastes in the variety of music you listen to then that is perfect, for you.
Rick