The way CoE is written it would be very difficult to do with no enemble.. In the second act you would have to cut a lot of the "stoytellers" because they sing at the same time the 9 named characters do.. it's an important part of the show to have storytellers.. even if it's just 4 one for each part.. however I think the sopranos at the least seperate into part.. maybe even the altos.. I would have to check my libretto.. I would say 15 would be the bare minimum, but hey more power to em if you can pull this off.. It's a beautiful show..
"All work and no smut makes Cammy lose her edge." ~DG
"Someday I'm going to have a baby and I'm gonna name her L'il Mimi Marquez and I and will sing to her every day and when she's a toddler I will say "L'il Mimi Marquez, clad only in a bubble diaper, will perform her famous play pen handcuff dance to the sounds of breast milk being pumped!" ~Kringas