Because early opera is highly regimented and at times surprisingly experimental, the right performance space makes all the difference.  The little OPERA theatre of ny (LOTNY) presented the NYC premiere of Johann Adolph Hasse's "Piramo e Tisbe" at the Baruch Performing Arts Center on the East Side.  The CUNY campus housing the theatre is in the corporate, no-frills Kips Bay neighborhood - making its intimate size ideal for students and those new to opera.  Since the sold-out audience consisted primarily of students, and Hasse's 1768 opera (revised, 1770) was new to most likely new to everyone else, LOTNY and the New Vintage Baroque orchestra conducted by Elliot Figg  proved both outstanding musicians and