Tomografia Assiale Computerizzata, frequently credited as the abbreviated T.A.C., is a post-industrial, experimental and electronica group from Cagliari, Italy.
The group was formed in Parma, Italy, in 1981, with five members, Andrea Azzali, Simon Balestrazzi, Giorgio Barbuti, Fabio Cortesi and Giampaolo Terenziani. The name is the Italian for the medical imaging device Computed Tomography (CT).
The group was originally known for making a crossover between experimental music and avant rock, involving treated tape loops, custom built synthesisers and metal sheet percussion one one side and guitar, bass and drums on the other.
Between 1985 and 1997 several personnel changes occured and several line-ups revolved around only original member Simon Balestrazzi.
Among the musicians that joined T.A.C. we should remember Gregorio Bardini (Tuxedomoon collaborator and member of Thelema), Celestino Pes (later of Andromeda Complex), Patrizia Mattioli and Paola Sartori (both of Kino Glaz), Enrico Marani (later with Le Forbici Di Manitù and Duozero), Giovanni Fiaschi (Limbo). For a while (1993-1997) the band crossed paths with Kirlian Camera and while Simon Balestrazzi joined K.C. both Angelo Bergamini and Emilia Lo Jacono joined T.A.C.
After a few years hiatus, Simon Balestrazzi relocated to Cagliari and reactivated T.A.C. with two Sardinian musicians: Monica Serra and Corrado Loi