I Chronicles 6:33, 39, 44

And these are the ones who ministered with their sons: Of the sons of the Kohathites were Heman the singer, the son of Joel, the son of Samuel

And his brother Asaph, who stood at his right hand, was Asaph the son of Berachiah, the son of Shimea

Their brethren, the sons of Merari, on the left hand, were Ethan the son of Kishi, the son of Abdi, the son of Malluch