Katz To Depart BMG: BMG US Pres./Repertoire & Marketing Zach Katz is leaving the company after six years as the company splits its US repertoire organization into three. Katz will step down at the end of the year for an undisclosed opportunity. BBR Music Group EVP Jon Loba and BMG Nashville EVP Kos Weaver will formally take joint control of BMG's repertoire operation in Nashville.