This is cool:
Something for fans or alumni of the late SGI's workstations:— A Moogle (@TheMogMiner) April 17, 2022
Here are all 11 audio chimes of the O2 (8 unused as far as I know), re-rendered from pluck tables and the original algo pulled from the ARCS PROM itself.
I wonder if https://t.co/vsh1QpJAhq does operating systems. pic.twitter.com/0C72JGkQ0Y
See this tweet about how it's done: "The SGI O2 boot chime".
And this sub-thread with some code is fun too: "Is this for real?".