With a back catalogue of over 50 challenging albums, it might look like there's no particularly easy way of cracking the enigma of the Art Ensemble Of Chicago. Not so, says Eden Tizard, looking back at the group's first ECM album, Nice Guys, which was released 40 years ago this month
A quarter of a century ago, a constellation of stellar artists performed a kind of musical alchemy in a fabled New York studio. Voodoo has lost none of its allure and retains all of its impact 25 years on. How did they do this, a still dumbfounded Angus Batey asks