News Billboard and Nielsen have been discussing change "for months" Blog 'There has been no credible alternative to a Friday proposed that would work at the global level' News Trade body says it consulted with artists, retailers and labels across the world News Streaming claims 58.5% of revenue News Global Release Date consultation has been a 'charade', says exec News Michael Jackson, AC/DC and Pink Floyd on list News UK video games industry hit £3.94bn in 2014, presumably overtaking music Analysis News Ad-supported services shoot up, but downloads and CD suffer