Question: Who produce 80 to 90 percent of the text to the opera at which Timothy Meyers has a role of Bertolt Brecht's? 
Sentence (from "Timothy Meyers"): " (David McComber), "Loot" (Meadows), "Tartuffe" (Damis), "The Caretaker" (Mick), "Steambath" (Morty), "Comedians" (Phil Murray), "King Lear" (Oswald), "A Midsummer Night's Dream" (Puck), "Measure for Measure" (Pompey), and "The Greeks" (Odysseus).
Relevant evidence: No