sentences:  The dialogue is underpinned by a high pedal in the organ, and - in conjunction with conventionally extra-musical sounds such as that of belfry bells, - heightens one's sense of total immersion, and helps reinforce the ritualistic and religious themes.Susanna finds herself increasingly seduced and overpowered, initially by the sweet scents and sounds entering through the chapel window, but soon by the physical presence of her maid-servant, and her lover.Following a Latin invocation of Satan by Susanna, she is cautioned by Sister Clementia, with the tale of a nun, Sister Beata, who gave in to her erotic fantasies, and as a punishment was bricked up behind the altar.