The Metropolitan Opera and its 150 employees in the Building services worker union have agreed to a compromise which has still to be approved by the union members. After the Met’s initial proposal of no raises, reduced pensions and high-deductible health plans, the new agreement should increase the workers’ salaries by 5.5 % over 5 years plus $2,000 in payments instead of the 2 percent annual raises like in the previous contract. Those changes would save the Met 3 percent over its previous deal, or $1 million.