The Metropolitan Opera in New York has asked its soloists to cut their fees by up to 7 percent to match the reductions that the Met’s chorus and orchestra agreed to – or to make a tax-deductible contribution to the company of an equivalent amount. Some of the Met’s most popular singers have apparently already agreed to accept the cuts, including Anna Netrebko, Joyce DiDonato, Plácido Domingo and Renée Fleming. If the top fees at the Met have been $17,000 a performance; the 7 percent reduction would diminish them to $15,810.