Asaph is here called Heman's brother, both by birth, being of the same tribe and father, Levi; and by his office and employment, which was thee same with his.
Related Commentaries of 1 Chronicles 6:39
1 Chronicles 6:39
39 And his brother Asaph, who stood on his right hand, even Asaph the son of Berachiah, the son of Shimea,