There were songs that fitted certain occasions... the anthemic quality of "We Thank You Jehovah" sounded pretty good to me at the time, when sung by many thousands at the end of a Twickenham convention. When choosing a song to open a Public Talk I would go to something with an easy chorus and that they all knew.
I never wanted to sing them other than at meetings. Once I woke up I could never sing the words, they stuck in my throat .