[Skyman911]

@langerking, changes in humidity usually will change how a guitar tunes up. When things get more humid, the wood naturally expands resulting in sharper notes. Less humidity usually results in flatter notes due to the wood shrinking. Much more prevalent on solid wood guitars. I’m in Utah where the humidity can drop to less than 10% in the winter. So, I see changes in how my guitars tune based on the relative humidity, even when keeping my instruments in a humidity controlled environment.