1 Chronicles 15:21 and Mattithiah, and Eliphelehu, and Mikneiah, and Obed-Edom, and Jeiel, and Azaziah, with harps tuned to the eight-stringed lyre, to lead. (WEB)
Psalms 6:1 For the Chief Musician; on stringed instruments, upon the eight-stringed lyre. A Psalm by David. Yahweh, don't rebuke me in your anger, neither discipline me in your wrath. (WEB)
Psalms 12:1 For the Chief Musician; upon an eight-stringed lyre. A Psalm of David. Help, Yahweh; for the godly man ceases. For the faithful fail from among the children of men. (WEB)