How would I put some back ground music? I want this music to repeate all the time but I want it quite and such, as of right now it is pretty quite but I don't know how to have it looping or implement it into my map.

void <entity> PlaySound(<aliasname>)

void <entity> PlaySound(<aliasname>)

that made 0 sense atleast give us an insight of what void and all that stuff means

Choose whatever music you want to add. Create a soundalias for it inside user_aliases.csv and make it looping here as well. Then in a script call it like so.

function bgmusic()
{
	player playSound("YOUR_SOUND_ALIAS");
}

that made 0 sense atleast give us an insight of what void and all that stuff means

It makes perfect sense to anyone with a reasonable amount of programming knowledge.

void <entity> PlaySound(<aliasname>)

void - Returns nothing
<entity> - Use this on an entity, such as a player, script model or script brushmodel etc
PlaySound - A game function called PlaySound (duh)
<aliasname> - the name of the alias you want to play.

It's not that bad.
https://steamcommunity.com/sharedfiles/filedetails/?id=842624971

My specific guide on it.