|Easton's Bible Dictionary|
Jubilee, music, Lamech's second son by Adah, of the line of Cain. He was the inventor of "the harp" (Hebrews kinnor, properly "lyre") and "the organ" (Hebrews `ugab, properly "mouth-organ" or Pan's pipe), Genesis 4:21.
Int. Standard Bible Encyclopedia
joo'-bal (yubhal; for meaning see JABAL): Son of Lamech by Adah, and inventor of musical instruments (Genesis 4:21).
Jubal (1 Occurrence)
Genesis 4:21 His brother's name was Jubal, who was the father of all who handle the harp and pipe. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)