Peter Brotzmann: Free Jazz, Revolution And The Politics Of Improvisation (Daniel Spicer) 
 
Daniel Spicer's excellent musical biography of one of the real titans of Free Jazz and improvised music, Peter Brotzmann, in what is the first full-length English language of its sort.  Drawing on interviews and recordings Spicer pieces together a life always at the cutting edge of revolution and one that, under the hardened exterior one that was both caring and hugely community orientated. 
 
Paperback.