Mazmur 75:1-9

Asaf : father of Joah, Hezekiah's recorder,son of Berechiah the Levite; music minister under David,father of Zichri; a Levite ancestor of some returnees,an official over the (Persian) king's forest in Judah

Sela : a musical notation for crescendo or emphasis by action (IBD)
(30° 19´, 35° 27´); (31° 46´, 35° 14´)

Yakub : the second so of a pair of twins born to Isaac and Rebeccaa; ancestor of the 12 tribes of Israel,the nation of Israel,a person, male,son of Isaac; Israel the man and nation