Calibration does not work (note outside range)

Program says to press lowest amd highest note, i do that and right after it asks a note outside my current octave setting, pitiful.. Needs a short and not too annoying audio cue when you miss a note, needs to add option for the partition to scroll from right to left with a line following tempo (guitar hero-ish), until it does that, it will stay below 3 stars for me...

SRousseau about Piano Tutor App, v7.1