assigned dirs:
 bpdev: = sasc:b&p
     m: = bpdev:m
    ui: = bpdev:ui
  test: = m:test
 bplib: = bpdev:lib

SASc: [DH1]

  sc  [dir] SAS/c stuff
  b&p [dir] B&P development stuff
    makefile
    scoptions
    lib [dir] BPLib.lib, ConfigLib.lib, RandomLib.lib live here

    m  [dir] non-ui stuff
      *.c     source code

      h [dir] non-ui headers
        proto [dir] prototypes
      doc
      gst [dir]
      obj [dir] destination for object code
      test [dir] test song files & whatnot
      exe  [dir] destination for linked tools and accessories

      lib [dir] link library development stuff
        makefile
        scoptions
        src [dir]
        obj [dir]
        proto [dir]
    ui [dir] all the user interface stuff

      h [dir] window declarations and shared gadget files

      icons [dir] tool & accessory icons header files
        brushes [dir] brush files for tool icons
      pw [dir] PowerWindows files

      images [dir]
      	toolicons [dir] brush files of tool icons (yep, I messed up)
      	brushes [dir] brush files of miscellaneous gadgets