In this extract from a new book on Sheffield’s musical history, Monkeys drummer Matt Helders and the cream of the city’s indie scene look back on the febrile mid-00s – from brilliant tunes to ‘brainless violence’ In this extract from a new book on Sheffield’s musical history, Monkeys drummer Matt Helders and the cream of the city’s indie scene look back on the febrile mid-00s – from brilliant tunes to ‘brainless violence’ I n 2005, enough of a storm seemed to be brewing in northern British