Mastering engineer at Trident Studio, London and subsequently operating at Allen Zentz Mastering, Hollywood and at Bernie Grundman Mastering, Hollywood (1984–2015). He's the owner of Brian Gardner Mastering. Often referred to as "Big Bass".
The inscribed flower and bird motifs in the deadwax to the right of AZ are of mastering engineer Brian Gardner. In these cases, please use
Mastered By [Runout Etching ❀] - Brian Gardner or
Mastered By [Runout Etching ⁀⁀ ⁀⁀] - Brian Gardner.