Sacramento Opera has decided to take on Handel's opera seria Orlando (1733), originally composed for Senesino in the title role. San Francisco did it long ago (1985) as a vehicle for Marilyn Horne, conducted by Charles Mackerras who also edited the edition. General Horne was magnificent. In this decade its been revived by the Royal Opera.
My impression from memory and everything I can find to read about it is that this opera is a vehicle for whoever sings the protagonist. In Sacramento this will be a countertenor, Randall Scotting, an American who sings internationally. He gets a mad scene. If he's any good, it should be a treat. It plays Friday night and Sunday afternoon.
Here is a dvd from the Zurich opera.