Wed May 22 10:49:02 EDT 2013

To inline or not?

Some more things to do:
- Block-based transform processing
- Vectors & matrices

Essentially, this is about generating non-accumulating for loops, or
at least generating temporary buffers.  Is it possible at this time?

The main missing link is the execution of feedback systems as
sub-loops.  Maybe the time loop needs to be made explicit?

What about unifying feedback and reduce, or make reduce operate on
feedback structures?

Making the time node explicit means introducing an interface point
between two sides of a loop.  Essentially this is about accumulator
setup and pass-through.

It's unclear at this time.  Let's fix the FDN problem first.

It seems reduce needs to be extended to allow for output streams.
That will make the body a standard siso system.