As ACM secretary and a member of the Hacklahoma advertising and media board, I'm lucky to be part of the great student team making this event happen. (I worked on the website (GitHub 2019, 2018) quite a bit, and some other stuff.)
Thanks to all our sponsors, mentors, and attendees for making Hacklahoma 2018 awesome. Keep an eye on the website and social media for updates about next year.
Built on Electron, with howler.js for audio and additional packages to handle metadata. I've only been working on this for a couple of days, so the code isn't yet debugged, optimized, and documented. (Please check back for a more finished version.)
Since this application does quite a bit of processing to create a real-time frequency visualization, I wouldn't recommend it for mobile devices, though it's not too heavy on desktop.
Note: This is posted on GitHub under a pseudonym so I can share it with strangers on the internet. I'm happy to confirm that the account is mine.