For those about to rock, we salute you ... let the music play

Running on empty, buried alive in the blues, to Beijing busker Bai Ming, rock 'n' roll ain't noise pollution.

"It's still rock 'n' roll to me," Bai said about his life's love and breadwinner - strumming streetside on his Paul Reed Smith guitar.

Smartphones, known to traditional conversationalists and lovers of the daily dally over broadsheets with bacon as an invasion of a virtual virus, first made themselves known in the middle of the last decade - some two score years after the British Invasion.