
They make a recording, using some other street performers to constitute "the band." (I guess this aspect had some genesis in the lead actor's personal story.)
When I was watching the movie, I was surprised at how much singing was included, and felt the plot was not developed much. (Those two issues go hand in hand, as the inclusion of several three-five minute songs really cuts down the time available for the story.)
But I realize I missed the point. This was a musical. It just didn't look like a traditional musical. It had about the story line depth for a traditional musical - which is fine, many of those are great stories. So I conclude that I liked this.
I heard that the production budget was only $150,000 or so, which seems unbelievable.