I cant figure out to to tune this damned thing into other tunings besides half step down and and drog d. Its a Korg GA-30 bass/guitar tuner. It has a flat button that drops the tuning down but i do not know what tuning it puts it into and it does not say in the manual. The only indicators it has are Low B, E, A, D, G, High C. That is all it ever indicates at one of those 6 markers and i am totally unsure of how many times i hit falt to tune it down. I can hit the flat button five times before it resets also. If anyone knows what tunings each of these flats indicate are plz help me!. I know the first is one half step down.