A world without musical instruments— that was the world that Jubal grew up in. Evidently, Jubal was not satisfied with such a world. And so, he sought to improve it— and improve it he did. To merely call Jubal's inventions successful would be an understatement. The inventions of Jubal had an enduring impact on the world— an impact that can still be seen to this very day.
Throughout history, a variety of types and styles of music have been invented. Almost all of these genres can be traced back to two types of instruments: string instruments and wind instruments.
His brother's name was Jubal; he was the father of all those who play the lyre and pipe. (Genesis 4:21)To imagine a world without musical instruments is a difficult task... No guitar, no piano, no flute— nothing. However, before Jubal, this was the state of the world. Doubtless the world was not devoid of all music— for if men had not yet learned to use their voices to create melodies, there was still the music of nature— the chirping of the birds, the rushing rivers, the wisp and whistle of the wind...
But then Jubal came on the scene. He wasn't just a famous musician like Bach or Beethoven, but he was the father of all musicians who use string or wind instruments. The son of Lamech and Adah, Jubal (like his brother Jabal) became a master in his trade. He invented (or at least popularized) two foundational musical instruments. Not only did Jubal become skilled at playing the lyre, a string instrument, but he also became skilled at playing the pipe, a wind instrument. In short, Jubal is the father of the basic elements which make up music to this day.
The Forger of All Implements of Bronze and Iron - Tubal-cain - Genesis 4:22
The Father of Those Who Dwell in Tents and Have Livestock - Jabal - Genesis 4:20
The City of Enoch - Genesis 4:17-19
Cain and Abel: Two Routes - Genesis 4:1-2
What Does the Bible Say About Polygamy? (Part 1) - Genesis 4:19