Mark Nguyen & Juan Andres Lizaro have created Lovers and Angels, a rock opera featuring a variety of performers. “High Society” is a duet that teams a sweet, appealing female with a male singer whose soulful, soaring pipes would steal the show if not for the guitar player who delivers some absolutely incredible fretmanship. That’s especially so on “Angel with a Broken Wing” with its spooky and mythological backdrop that sets the stage for an all-out arena-rock onslaught. “Life Imitates Art” is a slice of Eagles-like mellow rock with a sweet (borderline sappy) vocal. Overall, we wish the material were as impressive as the musicianship, but Nguyen & Lizaro’s work is solid and crafty.