▁United ▁States , ▁a ▁notable ▁early ▁example ▁was ▁the ▁Association ▁of ▁Tal ent ▁Ag ents , ▁which ▁was ▁formed ▁in ▁Los ▁Angeles , ▁California ▁in ▁ 1 9 3 7 . ▁The ▁A TA ▁comes ▁out ▁of ▁the ▁Wagner ▁Act ▁u ph eld ▁by ▁the ▁Supreme ▁Court ▁which ▁established ▁many ▁of ▁the ▁un ions ▁and ▁gu ild s ▁that ▁reg ulate ▁people ▁who ▁work ▁in ▁the ▁entertain ment ▁industry ▁such ▁as ▁the ▁Screen ▁Act ors ▁Gu ild , ▁Direct ors ▁Gu ild ▁of ▁America , ▁and ▁Writ ers ▁Gu ild ▁of ▁America . ▁ ▁Music ▁man agers ▁A ▁music ▁manager ▁( or ▁band ▁manager ) ▁may ▁handle ▁career ▁areas ▁for ▁bands , ▁sing ers , ▁and ▁DJ s . ▁A ▁music ▁manager ▁may ▁be ▁h ired ▁by ▁a ▁music ian ▁or ▁band , ▁or ▁the ▁manager ▁ ▁may ▁discover ▁the ▁band , ▁and ▁the ▁relationship ▁is ▁usually ▁contract ually ▁bound ▁with ▁mut ual ▁ass ur ances , ▁war rant ies , ▁performances ▁guarante es , ▁and ▁so ▁forth . ▁ ▁The ▁manager ' s ▁main ▁job ▁is ▁to ▁help ▁with ▁determ ining ▁dec isions ▁related ▁to ▁career ▁moves , ▁book ings , ▁promotion , ▁business ▁de als , ▁recording ▁contract s , ▁etc . ▁The ▁role ▁of ▁music ▁man agers ▁can ▁be ▁extensive ▁and ▁may ▁include ▁similar ▁duties ▁to ▁that ▁of ▁a ▁press ▁agent , ▁prom oter , ▁book ing ▁agent , ▁business ▁manager ▁( who ▁are ▁usually ▁cert ified ▁public ▁account ants ), ▁tour ▁man agers , ▁and ▁sometimes ▁even ▁a ▁personal