First picture - nothing exciting - sheet rock going up - slowly.
Second picture - the side framing of the vocal booth. Notice I'm butting the vocal booth against an angled ceiling, and will be covering the cedar paneling with plywood then sheet rock. I chose not to bother tearing down the cedar since peeking behind the insulation was more than acceptable. So, I nailed it back and marked the studs. Then I'm going to screw the plywood through to the studes, then screw the sheetrock on top of that, but not to the studs.
Third picture - header and footer of the vocal booth, for framing. The floor is level of course, but the ceiling at this spot is a 4.35 degree angle, sloping backwards. Glad I remember basic geometry.
Scary