1by4by9 said:Illogical then it is.
Another view: It would be easier to write sheet music having the instruments in the same tuning. For example a guitarist playing something in F#m while keyboardist playing in Em would make it too messy, IMO. I just got into thinking this because I always "downtune" keyboard along with guitars when writing sheet music.
Maybe I´m too stuck with those Guitar Pros and Powertab Editors...
But anyway, thank you for this information.