what scale hasa bright, cheery tonality
In major keys, the notes of the scale are often used to build "bright"-sounding major chords. They also give a strong feeling of having a tonal center, a note or chord that feels like "home", or "the resting place", in that key. [ The "bright"-sounding major chords and the strong feeling of tonality are what give major keys their happy, pleasant moods. ]
There are no new answers.