Best answer by Mathis
I recently made a new account, mainly because i had sounds on my old account that i really wasn't happy with and the account was really just a mess.
Looks you have it mainly covered - super cool to see how the help forum is growing with so much quality content! Google has a tool for URL submissions - I've just submitted your SoundCloud-URL so Google indexes it. I guess it'll now be a matter of time until Google updates their caches.
Here's the URL to submit a URL:
If you want to remove an outdated URL from Google's indexing, here's the relevant tool for that:
Hope this helps!