| Technically, she was a coloratura soprano, but her voice has none of the twittery or harsh qualities that one sometimes finds in French coloraturas. |
| You can't relax your brain even for a second, otherwise you will lose a lot of notes doing those fast coloraturas. |
| She sings some of the most challenging coloraturas ever written and it must be stated that Slawitscheck has a wonderful voice able to master these difficult musical problems. |
| Although singing most of the time only mezzo forte, his pronunciation is good, his coloraturas flow weightlessly and his piano is clear and sure. |
