Go to the browser: http://battleofthebits.org/browser/
Select "filters -> audio only"
Observe how you can still still get tic80 and html5 entries if they happen to show up. Easiest way to get them to show up is to sort by "plays" and "ascending".
well this one turned out to be interesting
there are a series of truth tables related between formats and point types and, finally, medium types
formats giving out "codist points" are creating entries with "audio" as their medium type =U