I have just purchased a second hand Snail BHC-5B baritone ukulele. It look stunning and sounds beautiful. However I am confused by the strings. The original strings were GCEA but the previous owner has had D'Addario EJ65B baritone strings put on with one wound string but it still appears to be tuned GCEA. Do I need to loosen or tighten the strings to get the correct baritone tuning. Hope that isn't a silly question.