Question about keys authoring
As I understand it, charts for basic keys are slightly different depending on whether the player is using an actual keyboard or is doing keys-on-guitar (similar to how Pro Guitar charts are slightly different for the Squier versus for the Mustang). Is it up to the author to make this slightly modified chart? Or does the game figure it out on its own? How difficult/time consuming is it to make the modified chart, if it's the author's responsibility?