I dont know about Ma-sonics, She does Ultrasonics with the famous Squeak!!! the only sound heard when she stops is the thud of deaf bats running into things, like trees and buildings etc.!!!
but she sings right well.
It was the Organ accompaniment version, rather than orchestra, and I felt that this (more spartan) approach made the choral work shine that bit more clear and bright and it is THE most sensual piece of music (even if it is a requiem!!!)possibly ever written, right up there with Tristan and Isolde.