Let's analyze this.
In a 5.1 system, that ".1" is one mono, low frequency effects track that's generally below 80 hz and is designed to go to a subwoofer, and only a subwoofer. ...or two...or three... or, well, you get the idea. But. it's still a mono signal
In a music system, (usually two channel stereo) there is NO separate bass track. All bass is in the right and left channels.
Knowing that, how would the settings in your receiver handle this dichotomy?