Thanks, Charley.

Exterior walls are to be filled with blown cellulose insulation. Wallboard inside covering the cellulose, most likely with a clay-based treatment* on the wallboard. Eventually we'll build interior walls, again most likely with the clay treatment on wallboard. We're looking into insulation with sound blocking properties in the interior walls to keep private areas quiet and minimize noise leakage from bathroom and laundry areas. For now, we just have the bathroom walls framed in, no others.

"The rafters are Douglas Fir and the ceiling panels are Western Red Cedar." Solid foam insulation is between the roof and the cedar ceiling wood.

Hangings- yes, that's what I was indicating by mentioning textiles to soften harsh sound areas; We have some quilts, weavings, etc., and will add more as we can make or find them, as needed.

* Improves sound quality in a space.