"Triumph" is a hot-button word often overused by music writers. Editors love it – it usually appears in the headline – and readers like its visceral appeal. Can a 57 year old semi-retired soprano icon, tripped up by a misconceived production in last year’s season opener at the same venue, return and recover her acclaim - alone on stage, singing a program of devilish artistic challenge? If her name is Jessye Norman, the answer is yes and "triumph" is appropriately applied.