Thanks Thomas,
Your drawing is correct, except I was a little off about the length of the alcove; it's about 13' not 9'. Also, there is a double window in the middle of the front (i.e., top of the diagram) wall, a single window towards the front of the left-side wall (starting about 5' from the corner). There is a door (leading to a bathroom) in the right wall near the front starting about 4" (yes, inches) from the corner and a doorway (no door) in the right wall near the rear starting about 3" from the corner.
Also, there is a small sink with upper and lower cabinets on the right wall in the middle of the alcove area.
No, the ceiling is plasterboard just like the walls (except for the brick fireplace area, I just meant that I don't think there is any extra space between the bottom of the beams and the ceiling.
It will be used for practicing, recording and mixing. As far as mixing goes, I have a PC-based system (using Aardvark Direct Pro) and a couple active monitors.
That may be more information than you need
