"Gamma" is a dramatic Italian TV show from 1975, a mini-series that
combines mystery and science fiction, in a story that raises interesting ethical questions of science and medicine
The "Gamma" soundtrack, composed and directed by Enrico Simonetti, is a perfect combination of classical, jazz and pop music, with forays into prog and funk-rock.

The main theme was a 7-inch single released at the time which was No
1 in the charts. The success prompted Cinevox Records to release an LP which includes the two tracks "Gamma" and "Drug's Theme", especially written for the TV show, together with other songs composed by Simonetti. Like many productions of the time, the recording of the "Gamma" soundtrack was a mystery, but it is certain that Goblin took part in the recordings right after the release of
"Profondo Rosso": "Drug's Theme" in particular seems to come straight out of a jam session of Goblin playing from Rome.