May 10 07 late afternoon, Ottawa river, outdoors, zero peopliness, rapids, car, birds, fairly dense, starts with steady rush of rapids, ends in woods with birds etc. Less a space-transition, more a density/texture-transition maybe...?

May 10th late afternoon. Ottawa River Parkway. Outdoors. Quite dense to medium density. medium-busy highway traffic to woods (birds etc.)

May 10th, late afternoon. Ottawa West Filtration Plant. Outdoors. Zero peopliness. From woods (birds etc) to the medium-to-loud hum outside a water treatment facility. (Technically the same 'space', but different sound worlds...)

May 10th, late afternoon. Mud Lake conservation area, Ottawa. Outdoors. Zero peopliness. In the woods (birds etc); a plane passes overhead, close enough to be quite loud. Does this constitute a transition? I have not moved; my space has not changed. But the shift from natural sound to the sound of the plane is a dramatic shift in cultural space... (Plus the plane has a nice symbolic link with our themes of transitions, different local and geographical spaces, etc...)

May 10th late afternoon. Ottawa River Parkway. Outdoors. Zero peopliness. Woods (birds etc) to medium-busy highway (traffic - buses, cars.)

May 10 late afternoon. Mud Lake, Ottawa. Outdoors. Zero peopliness. Medium density. No traffic (well, some quite distant traffic.)
This is an attempt at a transition between two entirely outdoor 'spaces' - an open lake versus within the woods. The spatial shift is a bit subtle, though slightly supported by a shift in the sound sources (less/more birds/frogs/crickets...)

May 10th, late afternoon. Ottawa River. Outdoors. Zero peopliness. medium density. Not the most effective transition in the world - steady sound of rapids in the background throughout (stronger when closer to water); but transition from 'in the woods' (birds etc) to 'by the water' (water lapping at the shore etc) provides some sense of transition...