The week ahead in L.A. dance, May 20-27: ‘Gala Flamenca,’ ‘Heartbeat of Mexico’ and more

Momentum 2018 Orange County Ballet Theater’s showcase for emerging dancers includes two new contemporary works, plus a performance of the suite from Tchaikovsky’s “Swan Lake” featuring guest dancers from San Francisco Ballet, et al. Irvine Barclay Theatre, 4242 Campus Drive, Irvine. Fri., 7:30…