] Sales of legally downloaded songs have shot up more than ] tenfold in 2004, with 200 million tracks bought online in ] the US and Europe in 12 months. ] ] ] The global music industry has hailed the increase as a ] sign the digital music market has "taken off". ] ] ] A million songs are now available to buy on legal sites, ] according to an International Federation of the ] Phonographic Industry (IFPI) report. ] ] ] IFPI boss John Kennedy said: "At last the threat has ] become the opportunity." BBC NEWS | Entertainment | Music | Legal music downloads 'take off' |