I think Joyce takes a narrow view. The US-backed dictatorship was monstrous, of course, and certainly put the country on a different track than it would have been on. Maybe as a result the music is different than it would have been.
Perhaps without Reagan and Thatcher we would have had 35 unbroken years of prog rock dominance in the US and England. To some people that would be good. For lovers of the Sex Pistols and the Clash and all that followed, not so good.
I totally revere the indie rock scene in Brazil. Check out Lulina at http://tramavirtual
Brazil has huge problems, but there is also much to be excited about, and not all of it is bossa nova!
"Bossa nova is a vision of Brazil as it should have been," says the singer
Joyce, who is organising a bossa nova 50th birthday concert at the Barbican
that will feature the style's originators and its new exponents. "We should
have been a wonderful, democratic country. Instead we had 21 years of
military dictatorship, something we are still paying for. So bossa nova
represents a different way of life; a culture more sophisticated than the
one we have today."