This was an experiment which reminds me of a type of male voice I've heard in G&S operas. It would be good if there was more 'crackle' or 'reediness' in the voice but I cant find how to do it. ( it sounds quite amusing as a contralto also) .
It was hard to get the words clear enough to understand. It probably can't sing the very fast "modern major general' type songs. At least, not so you could understand the words.
note .... I read an interesting article about how the brain identifies audible words by picking out the start and end. Which probably means that the consonants should be set even louder? Putting a little space between the words helped at times.
Perhaps the vibrato could be changed for other music styles.