Synthesis, scheduling and effects generated at runtime, not streamed. Makers declare their stack when they submit, so this page is a straight record of what people shipped with it rather than a survey of what is popular.
The tag exists, the games have not turned up. Tags get applied by makers at submission, so this fills in as people ship.
Tags cut across the catalogue; categories divide it. If Web Audio is not quite the cut you wanted, one of these twelve probably is.