I have some Backingtracks on Spotify and this runs on my computer. Now I have a Boss Katana 100 Amp and am a bit confused how I can actually playback that backing tracks from my PC to the Amp so I can join in with my connected guitar.
I also have a small Blackstar portable bluetooth amp. It's pretty simple there cause I just need to connect the bluetooth to my smartphones spotify and off it goes.
The Katana 100 does not have any bluetooth device as far as I know.