He is the son of Heman (worship leader).
1 Chronicles 25:4As for Heman, his sons were Bukkiah, Mattaniah, Uzziel, Shebuel, Jerimoth, Hananiah, Hanani, Eliathah, Giddalti, Romamti-ezer, Joshbekashah, Mallothi, Hothir, and Mahazioth.
1 Chronicles 25:13The sixth was for Bukkiah, his sons and brothers, twelve in all.