Prison music stars?

Just saw this story about a jail in Cameroon that basically has its own record label. It's wild to think about inmates making music videos behind bars, but I wonder if it actually helps with rehabilitation or just keeps them occupied. Do you think music programs like this actually help lower recidivism rates?

Source: https://www.bbc.co.uk/news/articles/czxqlkrlj7no?at_medium=RSS&at_campaign=rss