We reported on the new Mastered for iTunes section of Apple’s iTunes Store earlier this month (Bulletin, 23-Feb-12). Now it seems Apple has more plans to shake up the way music is distributed to its customers. The Guardian reports that the company is working on a new audio file format to provide “adaptive streaming” for people using iTunes and iCloud. It suggests that the format would adjust itself to the user’s network connection and available storage space, varying the audio quality accordingly. It also hints at possible plans for a fully-fledged iTunes streaming service, although iCloud appears to be the initial focus. “All of a sudden, all your audio from iTunes is in HD rather than AAC. Users wouldn’t have to touch a thing – their library will improve in an instant,” claims The Guardian’s source.