Random music playing on singleplayer

[Tayro_AG]

So, when i am playing Gmod singleplayer, random music starts playing at times. It is usually short, but loud. I have no idea what is playing this music, since i haven't subscribed to any addons that may play this music. The console isn't to much help either, since nothing new appears when the music starts playing. If you know what's causing this, please let me know.

[☆ veL]

You can try:
-- Typing menu_cleanupgmas into console
-- Typing cl_disablehtmlmotd 1 into console
-- [WHILE THE MUSIC IS PLAYING] On your desktop, at the bottom right (or wherever your computer clock is located), right click the Sound / Speaker icon, click Open Volume Mixer and you might see something called "Awesomium Core" that could be creating the music. Or just look at the volume bars of each program that is shown in the Volume Mixer and just mute the program that is creating that music.

[Lily McFluffy Butt]

You likely installed a backdoor.

[bubblebreadd]

I have this too but instead, there is a black and white photo of a man sitting on a fancy looking chair while loud bikini bottom music plays. I uninstalled every spongebob mod that I recently downloaded and reset my computer and nothing works. The man and the loud music plays every time I take a step and my friend has the same problem but with a different image and audio. Every time she takes a step there is a lady shoving down a large burrito down her throat (she is overweight) and heavy breathing. Please help me on how to get rid of this.

[twixwithmilk5000]

i have a similar issue, but instead the game keeps playing random half-life 2 music and elevator stock music, but only the first 2 seconds. but the music is really quiet, like stupidly quiet.