Big Plans (Need Your Expertise)

Hi my name is Mike Pereira. I'm a singer songwriter who's building his own recording studio. Please assist me with my room layout. I live out in the country and it's pretty quit where I live. I'm going to insulate the room with the highest rated fiberglass insulation for 4" studs. Then put up hat rack with sound board and 5/8" drywall. My biggest question is how should I setup the control room. Also alot of the plans I see on this site have symmetrical angles on the walls. Are those walls framed or placed later if. What type of finish should be used on the drywall and how should the floor be treated. Thanks for your expertise I greatly appreciate it.

Hi Mike, could you add your location info to your profile and also add some additional info per the "read me before posting" stickie?