In the fourth chapter of the book of Genesis, we are introduced to Cain, the firstborn son of Adam and Eve. After Cain murders his brother Abel, he is banished from his family and goes on to build a city and have descendants. One of his descendants, Jubal, is famously referred to as "the father of all such as handle the harp and organ" (Genesis 4:21). But who was Jubal, and what does this title mean? Jubal is believed to be the fourth generation from Cain, mentioned in the genealogy given in Ge…