Hey Bernie, fwiw its not a nasty habit at all, just another tool to be used whenever needed. I have not met anyone yet who knows the chord progression/inversions, melody and lyrics to every song known, some try to do a bit of a hatchet job and fake their way (which even non-musician people can hear!!) through a lot of songs, but not every song!! And I am sure the few thousand users of the MPP would, PROBABLY, agree
Dennis