The impact of singing on children's psychological state and well-being was investigated with a participant population of 76 pre-pubertal children.
Typically, the whole performance is evaluated: the presentation, as well as the music being played or sung.
Unfortunately, no singing teacher was available then to help cope with the vocal demands of the piece.
Less popular were the 'mental practice' and 'sing and play' choices.
By shedding excess and approaching sung dialogue as if it were speech, singers were to be singing actors - the imperative of a musical dramatic art.
It is part of the style, like bel canto singing in most opera, or the swing eighth-note in most jazz.
Furthermore, although artists or song titles may have been forgotten, the lyrics were more often remembered, and many were able to sing along.
It is certainly an asset to be able to play the piano, but this ability is devalued if the teacher is afraid to sing.