For Heartbeat Opera's presentation of Massenet's exquisite "Manon," the co-adaptors Rory Pelsue, who also directs, and Jacob Ashworth, the company's artistic director, take a scalpel to Massenet's expansive five-act opéra comique, paring it down to a fleet, intermissionless ninety minutes. In the process, they excise subsidiary characters and the bustling choral tableaux that French opera has traditionally treated a…
