I also agree with Rharv about the piano being a mono instrument and Dan about there are no fixed rules.

In your bass, drums and piano example I would think about how they would be on stage and arrange my pans as such. I would put the drums dead center, the piano on the left and the bass on the right. I would not hard pan either but more like a little left and a little right. This is just how I would do it and others may have other suggestions.


Why is it that doctors call what they do 'practice'?
If flying is so safe, why do they call the airport, the terminal?

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware