A Full Moon in March / chamber opera : 1 act / 1968
The Death of Ferdia / chamber opera : 1 act / 1974
The Snow Queen / chamber opera : 1 act / 1982
Jack's Engagement / opera : 3 acts / 1988
Timone / opera / opera : 3 acts / 1995
Doctor Foster / opera : 3 acts / 2000
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