Easton's Dictionary
Jubilee, music, Lamech’s second son by Adah, of the line of
Cain. He was the inventor of “the harp” (Heb. kinnor, properly
“lyre”) and “the organ” (Heb. ‘ugab, properly “mouth-organ” or
Pan’s pipe), Gen. 4:21.
Smith's Dictionary
(music), a son of Lamech by Adah, and the inventor of the “harp and organ.” (Genesis 4:21)
International Standard Bible Encyclopedia
joo'-bal (yubhal; for meaning see JABAL): Son of Lamech by Adah, and inventor of musical instruments (Ge 4:21).