No one gives a rat's ass about my mission to build cheap x-ray units
for the unprivileged world
Almost no-one knows about it. You haven't even run a crowdfunding campaign for it (which you should do just for the attention). I assure you people (and the media) would care if you pitched it correctly with a nicely made video. We have a film-makers collective at Omni you know.
But maybe you _should_ take a long break from that project and do something creative. One piece of advice though: Before you shelve it for months/years take an hour to go through all of the files, write notes about everything for future you and back them up offline in multiple locations. Future you will thank past you.
As far as music, I'm kinda looking for some music theory learning stuff myself. Playing instruments is one thing, but composition is another. I haven't found anything good.