I just wanted to write a note to praise the awesome design of the Coda. It is fantastic and amazing! It really accomplishes the EDC goal that Karl mentions in the videos and website!
I have wanted an EDC instrument for a long time, and have tried a range of things, from Melodica to Kalima to Fife to Ocarina. The Coda really achieves the EDC goal better than all of those. It's small, has a lovely sound, 2 full chromatic octaves, and does not take too long to learn (although practice is definitely needed to create a nice tone).
I've had it for about 3 weeks, and I'm now really comfortable with it, and am having lots of fun playing tunes on it.
Just wanted to thank you for creating the Coda. I'll definitely be recommending it to friends, and will probably be getting a 2nd or 3rd at some point.