Open up your video editor. Find the gameplay footage you recorded. Import them into your video editor, without any music overtop of them.
Now this is the crucial part.
Locate a video that plays the song "A Little Less Conversation" by Elvis Presley on Youtube. People upload songs onto Youtube all the time, it shouldn't be that hard to find it. Find an app for your browser that lets you save youtube videos as mp3 files. Save the song as an MP3, preferably in HQ.
Go back to your video editor.
IMPORT THE MUSIC TRACK AND USE THAT, INSTEAD OF THE AUDIO FROM THE ORIGINAL GMOD VIDEO!!!
Got all that?
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