I spent quite a bit of the day trying to make a FFT decomposition tool with JUCE so I could make a particular idea I had for the Wikimedia jingle contest happen. I basically got as far as getting the buffer chain working, with no FFT, and I figured out a problem I had with nested vectors. So, at the end of the night, I did a cheap version of my idea by manually applying bandpass filters to a chord in Audacity. Oh, well.