diff --git a/oregano/TODO.md b/oregano/TODO.md
new file mode 100644
index 0000000..81e1b32
--- /dev/null
+++ b/oregano/TODO.md
@@ -0,0 +1,29 @@
+
+
+
+
+
+## Interface
+
+
+
+### DAW-like model
+
+Oregano will have these concepts/objects:
+
+
+- track: like a "track" in renoise. can have notes, and a list of effects.
+
+
+- instrument: instrument defenitions or presets, and actual instantiated instruments.
+  - I should make some instrument presets, like sine, saw, square, triangle waves.
+
+- filters: can be added to tracks. e.g. reverb, low pass filter.
+
+
+## Functionality
+
+- adding filters
+
+
+
diff --git a/oregano/routing.rkt b/oregano/routing.rkt
new file mode 100644
index 0000000..5b3308d
--- /dev/null
+++ b/oregano/routing.rkt
@@ -0,0 +1,53 @@
+#lang racket
+
+#|
+tracks:
+
+0 - output left speaker
+1 - output right speaker
+3 - first track
+
+## example usage
+
+; add reverb to track 3
+(append-effect track3 (reverb-effect 0.5 0.9))
+
+(append-effect track3 (reverb-effect 0.5 0.9))
+
+; done internally:
+; (process-track 3)
+
+(define my-piano (make-instrument "piano"))
+
+(note-on my-piano C#3 track3)
+
+|#
+ 
+(define effects-list '())
+
+
+
+;; adds an effect to the end of the effect chain of the given track
+(define (append-effect track-num effect-ugen)
+  ; TODO
+  empty)
+
+;; creates a ugen that is routed
+;; in-bus: input bus channel
+;; out-bus: output bus channel
+(define (make-effect-ugen effect-ugen in-bus out-bus)
+  ; TODO
+  empty)
+
+;; example effect ugen
+#;(audition (out 0 (free-verb (in 1 ar 16) 0.5
+                            (mouse-y kr 0 1 0 0.1)
+                            0.5)))
+
+(define (make-freeverb-with-in-out in-bus out-bus)
+  (out out-bus (free-verb (in 1 ar in-bus) 0.5
+                          (mouse-y kr 0 1 0 0.1)
+                          0.5)))
+
+
+