Play html audio tag with R key

I have a html audio tag like

I want to play it with R key, I wish this feature was official built in, instead of using js event scripts.
Beacuse use js event script listening keyboard press, It only works on pc, not on Android.
If official built in button “R”, It works on both Windows and Android, and i can play audio html tag on ankidroid with a gamepad or keyboard.