They Shot the Piano Player centers on a kind of ghost: Francisco Tenório Júnior, a leading light of the thriving Brazilian music scene of the 1960s and ’70s who went missing in 1976, while on tour in Buenos Aires. How this keyboard virtuoso, by all accounts a gentle soul with no political ax to grind, became one of the desaparecidos targeted by Argentina’s oppressive regime is the puzzle that drives the movie.