diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..e845830
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,9 @@
+# TODO
+- [ ] add an LFO class
+- [ ] add 'DIGITAL' as a filter type to AudioEffectAnalogDelay
+- [ ] refactor AudioEffectDelay to use reusable library components
+- [ ] create AudioEffectADT, an automatic double tracker
+- [ ] create AudioEffectSOS, a Sound-on-Sound effect
+- [ ] create AudioEffectTremolo
+- [ ] create a MIDI controlled chorus
+- [ ] create a MIDI controlled flanger