Stream Windows PC Audio to Raspberry Pi LMS

I was challenged by my 5 year old to send the output of my Windows-based Audio PC running Ableton and capturing sounds from my synthesizers to our Raspberry Pi Logitech Media Server so that we could listen throughout the "whole house".... I know about the "Line-in" plugin on LMS... But how can I, in an efficient/simple manner send an audio stream from Windows 11 to LMS on a RaspberryPi? My PC has a fancy USB Focusrite multiple output Audio interface... but I think sending the audio across the LAN in the house would be more elegant that draping a cable across the floor.

I thought about setting up shoutcast/rocket streaming audio server/and OBS... but it seemed too complicated for my short attention span mind at this moment. Anyone have any recommendations?

Thanks!!