Apple today announced that EMI Music’s entire digital catalog of music will be available for purchase DRM-free (without digital rights management) from the iTunes Store worldwide in May. DRM-free tracks from EMI will be offered at higher quality 256 kbps AAC encoding, resulting in audio quality indistinguishable from the original recording, for US$1.29 per song. In addition, iTunes customers will be able to upgrade their entire library of all previously purchased EMI content to the higher quality DRM-free versions for 30 cents a song. iTunes will continue to offer its entire catalog, currently over five million songs, in the same versions as today — 128 kbps AAC encoding with DRM — at the same price of 99 cents per song, alongside DRM-free higher quality versions when available.