How do I connect a direct line in from my audio device to my Pixel 3?

[Android Central Question]

I perform live music on Facebook and other places. I sing and play guitar to pre-recorded music from my computer. Presently I put an extended mic up to the speakers and videotape the performance and it sounds okay but what I really want to do is connect my master audio output directly into the Pixel. Is there any way of doing that?

 

[mustang7757]

Something like this?
https://youtu.be/LmCDrCgqRzU

I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply.
https://forums.androidcentral.com/showthread.php?t=409154