In what movie does an alien communicate using musical notes?

Close Encounters of the Third Kind

Which sailor hero spent ten years journeying home to Ithaca after the Trojan War? What was the charity song Taylor Swift released benefiting victims of the 2010 Nashville floods? In Nintendo's 'Splatoon,' what liquid do players use to cover territory on the specially-designed maps? Which fruit is mainly used in guava juice? What is a scientist who studies earthquakes called?