Apple and Taylor formed a partnership in December 2015, less than six months after the pair publicly made up following the artist’s call for the company to pay artist royalties during Apple Music’s free trial period.

According to figures announced on October 20 2015, Apple Music had attracted 6.5m paying subscribers nearly four months after launch.

That meant it had retained 60% of the 11m trialists who tested the service in its opening three months, following its worldwide arrival on June 30. Interestingly, although Universal Music Group distributes Taylor’s studio recordings -- her catalogue is owned by Scott Borchetta’s Big Machine Label Group -- the same is not necessarily true for the video of her live performances.

As such, the "1989" concert exclusive could well have been secured via a direct deal between Taylor’s team and Apple. “Big Machine Records/BMLG is the sole and exclusive owner of all recordings of Taylor’s musical performances, whether they are audio only or audiovisual. It has come to our attention that there are stories claiming Taylor’s exclusive content agreement with Apple was done without the participation of Big Machine Records/BMLG.  That is simply incorrect.”

Taylor pulled her catalogue off Spotify in November 2014, commenting at the time: “It’s my opinion that music should not be free, and my prediction is that individual artists and their labels will someday decide what an album’s price point is.”

Taylor’s album catalogue has been available to stream in full on Apple Music since day one. Directed by Jonas Akerlund, "The 1989 World Tour Live" concert film captures Taylor’s entire performance from Sydney including footage filmed backstage and during rehearsals with special guests such as Mick Jagger.