Today has been slow going. I'm working on some very preliminary sketches of the third movement. It will probably open with the sound of a wind turbine, spatialized through the hall. The wind instruments will pick this up, in all likelihood mimicking the wind sounds. If convolution is going to play a role, this will be where it happens. Right now I'm (obviously writing this, but) thinking about different types of wind sounds that can be produced by instruments in the orchestra. This is nothing new. I did similar work for my 2005 dissertation, The Winds of Winter. Flutes can do pretty amazing airy sounds. I'm also considering the title, perhaps along the lines of Transient Energies. I'll try it out for a while and see if it sticks.