This week and next, MMDG is performing two programs at home. There are four works on view. One, Serenade, is a solo, premiered five years ago. Another, Pacific, was originally made for San Francisco Ballet, in 1995. Grand Duo, from 1993, is one of Morris’s most popular, and rousing pieces. The most recent work, Numerator, is from last year; this is its New York début. ★★★★✰