Walt, if you're like me you probably don't know the difference between a "C" & a "D". Many "real musicians" like Dale have explained these 6 steps to me this way - Because 6 steps is an "Octave, when a singer comes up & asks for something up or down 6 steps, I simply tell them to play in it's natural key & then use
their "high or low" voice, accordingly. The average karaoke singer doesn't understand "keys" any better than I do but may have a
good ear to sing on key, so this works without a lengthy explanation. And they usually thank me, too!