Bit late to respond on this post but thanks for your hard work on the Choon service, sir! Been on for a few days and as an independent artist who has had every sort of deal possible in the industry, Choon seems about as promising an endeavor as I've seen in terms of fairness and forward-thinking. The ability to smart-contract royalty splits has already led to one collaboration I'll be launching on their with Juxta in the coming month.
Regarding NOTES, I'm guessing ya'll are still going to facilitate cashing into ETH one way or another? Do you have exchanges lined up to accept NOTES for the September date you outlined in your Medium post (when NOTES go "live" so to speak).