My motivation songs were inspired when I would feel frustrated with my daughter when she fussed or didn’t want to cooperate when she was 3 years old.  I opted to sing to her rather than to scream at her.  That was a better emotional choice for both of us.  Now I’ll just sing the first 3 words of one of these songs and I get that look from her that I better stop.  I do, but am assured that the rest of the song is playing in her head.