For a musician is enough difficult send a stream from own PC to Second Life.
If it’s a live performance, the unexpected is around the corner, and it’s necessary to launch several programs at the same time, keeping your fingers crossed that everything works.
This is why I find this free VST plugin, ShoutVST, interesting. He allows you to connect your audio from within your DAW without launching other programs. Simple is always better.
It works with any program that supports VST technology and is pretty simple to set up.
This way it will be easy to prepare basic tracks in your DAW and play along with them using a dedicated track on your DAW. You’re not eight-armed octopuses, come on.
Download: https://www.kvraudio.com/product/shoutvst-by-r-tur
The VST at work inside Studio One, which is the DAW i use, But he work same with traktor or Ableton, for example, without the use of loopback methods.