quayle

Strauß's Rosenkavalier:  Romance!  Intrigue!  Mistaken Identity!  And both leads are played by women which is pretty awesome.  
Have a listen


Weber's Der Freischuetz: Dude makes a deal with the devil for seven magic bullets, only the last one ends up hitting the woman he loves.
Have a listen




Other Strauß's Die Fledermaus:  Oh my god, I love this one so much.  It is just so funny and ridiculous, while being really catchy.  It's basically about this half-baked revenge-scheme that plays out at a party hosted by a Russian prince.  Everyone does embarrassing shit and blames the champagne in the morning.  
Have a listen