[Answered]

Does it play sound at this stage? or other media (eg video, beyond still images and text and UI?)

EDIT Thank you for making and sharing this -- it is pushing the future closer to today (euphemisms are my superpower lol jk)!

EDIT 2: I see the "Enable Sound API/Access" toggle in the Gear icon, below my generation. Exploring this now.

EDIT 3: Behold the HORROR (Works in Desktop Browser) English -> Morse code with "Sound": http://asim.sh/s/160375

- tip: beware of playing long morse code sequences, there is no stopping it.