Note by @fastfinge

@stevenscott Interesting! I just...kind of assumed that this must exist! Though admittedly my needs are much simpler than yours. I'm just trying to trigger five different bits of audio during a presentation, without taking my slides off screen. I do a history of accessibility presentation frequently for some of our customers, with multiple sound clips going from the Apple II to modern neural text to speech sprinkled throughout to demonstrate how far things have come, and get folks reflecting on how much of modern technology has come out of accessibility research. I can put the sounds directly in the powerpoint, but playing and pausing sound clips from the presenter view with a screen reader is kinda fiddley. So I thought: "Hey, the blind radio guys must have solved my exact problem!" And then you just let me down. LOL