is taking music and giving them the credit is that okay it better using ai slop for music and ai 

You should only use someone's music if they have explicitly (clearly) said it's okay to do so. Just giving credit is not enough.

If I were to use one of Taylor Swift's songs without a license to do so she could sue me, even if I credit her. A smaller creator may not have the financial ability to sue, but it's still copyright infringement, and they still technically could go after you. Don't be a d*ck to small artists.

There are plenty of free and legal ways to get music for your projects. If you search for music on itch.io, you can find plenty of great audio asset packs that are free and can be used in commercial projects. I've used a website called Freesound.org in the past that let's you filter by Creative Commons 0. You literally just have to look.

You really want to be careful with using other songs. If you are going to go that route, make sure that you are using songs that you can use commercially.

Agreed with Pop Shop Packs above. If you want to use music in a game, you need to know who owns the license for it. If they say it can be used in commercial or personal products, go for it, otherwise, like they said above there's many places you can get music, including song packs with commercial licenses that may only be a few bucks.  

It's quite case by case but there's so many people on itch who make music specifically to be used in games for free. One of my favorites is tallbeard.itch.io -- bangers for small games.

Here is 6k packs of music packs that you can use /game-assets/tag-music/tag-no-ai

These 2k packs are completely free: /game-assets/free/tag-music/tag-no-ai

Completely depends on the artist you're taking it from. Some artists may want credit; some may not want you to use it. It's best to reach out and ask before you use anything, especially if it's commercial use. There are also tons of free music assets here or on online websites that specialize in free music.