The consultancy has been working with the football club for the last eight years and was tasked with developing a campaign to promote its membership packages.
The campaign has been developed around the #together hashtag, which was introduced by Manchester City last season, before they won their first title since 1968.
Music has produced a film to launch the overall membership scheme, voiced by former City player Mike Summerbee, a member of the 1968 title-winning team.
The script for the film, which was written with copywriter Nick Asbury, is also used in print collateral.
This season the club is also launching a ticket exchange scheme for the top two tiers of its membership campaign.
This will allow Platinum and Superbia members who can’t get to any Premier League home game to sell their ticket to another member. Music has created an animated film to promote the service.