From the Apple Computer History Weblog:
"Early Apple sound designer Jim Reekes sets Sosumi myth straight
Earlier this week on BB, I pointed to Jon Lech Johansen's blog "So Sue Me." Several astute readers reminded us that the blog's title is actually a punny reference to 'Sosumi,' an Apple system sound file with an interesting history that's become an often mis-reported bit of computing lore.
Jim Reekes was the engineer on Apple Sound Manager for System 7, and he created the Sosumi sound -- so I asked him to set the record straight. Here's the Wikipedia entry (which is now being updated), and here's Jim's reply to Boing Boing readers!"

Read more:
Sosume Story