Dion McGregor was a songwriter in the 60s.
Dion McGregor also talked in his sleep. Not in quiet, barely-comprehensible mumbles but at conversational volume.

While he slept, McGregor would essentially narrate his dreams. As a narrator of his (often terrifying) dreams, Dion adopted various personas but frequently established a fey, argumentative, insolent approach to the subject at hand – be it a hot air balloon trip to the moon with a group of multi-ethnic children, a frantic journey around New York, or a tattooing job on a woman’s tongue.
Most of McGregor’s dream narratives end with him shrieking in terror.