the coalition for a livable west side will hold its 22nd annual memorial day weekend music festival on sunday, may 24, on broadway between west 72nd and 86th streets. there will be performances by tre bella, melissa greener and robin greentein. vital theater will also present a play for children on the stage at west 86th street. more than 500 artists and antiques and collectibles dealers will exhibit their merchandise at the festival, which will also offer food from more than 20 countries. the event starts at 11 a.m. and finishes around 6 p.m.