I mean that does work if you want to do it mentally. Been doing doing it (adding to subtract or eventually multiply). Fastest way is still just to memorize what various combinations of numbers will produce. But base 8? What the hell. Though that method does tend to screw one over because it lends itself to not show your work which always pissed me off in school. Why do you care how I got the answer. Is it right or wrong?
So can we make everything correspond to a letter in the alphabet and speak in code in games so no one will know what we are saying?
That's base36. Balanced ternary is way weirder than that. Counting to 100 goes 1, 10 - 1, 10, 11, 100 - 11, 100 - 10, 101 - 10, 100 - 1, 100. But since that's confusing as hell, let's use T as a digit with the value -1 and then it can be 1, 1T, 10, 11, 1TT, 1T0, 1T1, 10T, 100, which is obviously much clearer. I'll leave writing a song about it as an exercise for the reader.