The Love Story singer hit headlines earlier this month (Nov14) when she removed her entire back catalogue from the music-streaming site because she did not agree with the perception that music should be "free".
Bragg then accused her of misleading fans because he believed she had a secret deal with technology giant Google to join the company's new YouTube Music Key streaming service.
The musician has now issued an apology on Facebook.com, insisted he heard about the "deal" from "credible sources" but accepts that he was mistaken in his assumption.
He writes, "I want to apologise to Taylor Swift for accusing her of selling her soul to Google. I have learned that her music will not now be available on the new YouTube Music Key service, which launched this week. This is despite a number of credible sources stating in the last seven days that it would be. My criticism was based on the fact that Swift's back catalogue was the central feature of a demonstration of the Music Key services given to journalists in London last week... In response to specific questions about Swift's music, journalists were assured that her back catalogue would be available on the service, including the free tier. Learning that Google were using Swift to promote Music Key gave me the impression that her music was going to be front and centre of their launch, the implication being that her Spotify boycott was a corporate power play, rather than an attempt by an artist to make the point that music has value. I now realise that I was mistaken in this assumption and wish to apologise to Ms Swift for questioning her motives. I would like to add that I will be boycotting the first media outlet to use the headline 'Bragg makes Swift apology'."