Rico Rodriguez played trombone on ska and reggae records for four decades, from the Jamaican studios of the 1960s to Britain's 2 Tone scene, and this film catches a group of young Barcelona musicians in 2006 trying to work out what made his sound his own. They rehearse and record versions of his coastal, horn-driven melodies while the camera follows the process of picking apart phrasing and tone that usually stays backstage. Interviews with Rico's family, friends, and former bandmates fill in the biography around the music, and archival clips of his own performances let you compare the original against the tribute in real time. The film stays close to the mechanics of musical inheritance: how a style gets passed from one generation to the next without a score, mostly by listening and copying by ear. There is no narrator pushing an argument, just musicians talking about a man they played with or grew up hearing, and footage of him doing the thing they are all trying to learn.