Boston’s Handel and Haydn Society made a splashy visit to New York City in April when it performed Monteverdi’s Vespers of 1610 at the Metropolitan Museum of Art’s Temple of Dendur, led by Artistic Director Harry Christophers. The performance represented H+H’s first return to New York since 1996, and featured seventeen orchestra members, plus solo singers and a 22-voice choir in the 90-minute, thirteen-movement work that encompasses sonatas, psalms, hymns, Gregorian chant, and a full Magnificat. This August, the 202-year-old ensemble will travel again to perform Purcell’s The Fairy Queen at Tanglewood, the summer home of the Boston Symphony Orchestra, for the first time since 1991. That’s all in addition to its regular Boston concerts, lectures at local libraries, community centers, and museums, plus an education program that reaches more than 10,000 children.