The Musical Mr. Finch (2010)

The musical Mr Finch has spent the last few years of his life trapped in a birdcage with only his collection of instruments for company. Captured by a horrible old woman and forced to play for her delight. One night, when she is asleep, he manages to escape. Suddenly the cage doesn't seem such bad idea anymore.

Unfortunately the movie The Musical Mr. Finch is not yet available on HBO Max.