Perhaps ‘underrated’ is the wrong word, because Raposo is rated very highly by people who know his name. But not enough people know his name.
For starters, there’s this:
And there’s this, where Raposo is both songwriter and singer:
On a lighter note, something like this:
Then on your knees, doubters, because there’s this:
He was not merely a fine writer of children’s songs. He was a fine writer. To write great children’s songs, you have to be.