[Bug 41285] Re: Some audio files have wrong icons

[Sebastian Dröge]

You assign those mimetypes by setting an default application for a extension. Ok, so this is a problem with your user settings... there's nothing we can do about user settings unfortunately so I'll close this bug as fixed again.
As a workaround you could remove the stuff from ~/.local/share/mime

** Changed in: shared-mime-info (Ubuntu)
       Status: Needs Info => Fix Released

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Some audio files have wrong icons
https://launchpad.net/bugs/41285