Streaming sales – listening to tunes on the likes of Spotify and Deezer – are set to take over as the leading revenue growth engine for the music industry, the report predicts, as music-lovers increasingly experiment with sampling new artists and listening to back catalogues online. In the UK, streaming revenues will grow at over four times the rate of online music downloads this year, helping increase Britain’s digital music spend by £51 million to £411 million in 2012, Strategy Analytics said.