previously , his own band has featured an international mix of musicians perico sambeat ( alto saxophone ; spain ) , bernardo sassetti ( piano ; portugal ) , geoff gascoyne ( bass , united kingdom ) , and gene calderazzo ( drums ; united states ) more recently he has toured the guy barker jazz orchestra -- a 15 piece big band featuring rosario giuliani ( alto saxophone ; italy ) and per johansson ( tenor saxophone ; sweden ) - performing dzf , a reworking of mozart 's magic flute with michael brandon narrating the story as a raymond chandler style pulp fiction novel , retold by robert ryan guy barker was musical director / arranger for the opening gala concert '' jazz voice : celebrating a century of song '' at the london jazz festival in 2008 , 2009 , 2010 and 2011 .