Streaming And Audio - How To Split Them Up

Hiii guys!

I recently started streaming my games (for fun, and it's a nice community), and I often have music playing through my soundbar while game audio and voice goes via my headset.
Now, I was wondering if there is a SIMPLE *emphasis on simple* way to split the two, so that the audio stream from my music doesn't get uploaded to the recorded game when it's published at the end of a stream. Basically, split the tracks.

I've had a few recommended programs, but they confused the heck out of me.
Got confused to the point of having my own audio on a low setting, or no music at all.

During stream they can hear it: Fine, good
After stream done: No music present except game and voice audio

Thank you for your time ^_^
Have a lovely day