I'm writing a piece that needs to have a drop D tuning- how do I mark the guitar's tuning at the top of the score? Is there a standard? Something like "E = D" or just "DADGBE"? Maybe a chord fingering chart type thing with the letters at the nut of the guitar?
I'm fine with "Tuning = DADGBE", but if there's a standard, I'm interested in what it is.