Complex sentence: From May 2012, a new chart, the Official Streaming Chart, was launched counting audio streams from streaming services Spotify, Deezer, Blinkbox Music, Napster, amongst others.
Split into simpler sentences: From May 2012, a new chart was launched--the Official Streaming Chart. This counts audio streams from streaming services Spotify, Deezer, Blinkbox Music, Napster, amongst others.